diff --git a/.travis.yml b/.travis.yml
index 9bcf999..49e2b87 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,7 @@
 language: java
 jdk:
-  - oraclejdk8
+- oraclejdk8
+env:
+  global:
+  - secure: Opjnt4LKgJcC+OqMV6s+aok6ocSS3iREtxTH67HdH+52v1CQxRiBmKx4omxoPwYS5pw2/z87yzYNz4bMMHehnU97aNpWGnXXeMYmbKah5pl5QHJ0nWDyvrluNIAsAkt5IyPUeIVfu+RcvZUNNkMPKFXg8pzD0bvUed05oCzVTCU=
+  - secure: hWHwRA7x5SiqWNh0BIUVMkMmTbWiEDqssI6075YPiAWEwwa46EZTk3+57JQ94nUKbMvKyXHMAviOTiW+TvOWRnfK3a+92ksufe/l+U0N+OT8/6x6KGL8q/y3ULsu8wrl7VigRT2lW46EiT6h+K7iR9dRNM7At6Dws/wMjzraRYk=
diff --git a/README.textile b/README.textile
index a300d54..7515e08 100644
--- a/README.textile
+++ b/README.textile
@@ -1,4 +1,4 @@
-h1. annotated-contracts "!https://secure.travis-ci.org/sebhoss/annotated-contracts.png!":http://travis-ci.org/sebhoss/annotated-contracts "!https://www.ohloh.net/p/annotated-contracts/widgets/project_thin_badge.gif!":https://www.ohloh.net/p/annotated-contracts/
+h1. annotated-contracts "!https://www.ohloh.net/p/annotated-contracts/widgets/project_thin_badge.gif!":https://www.ohloh.net/p/annotated-contracts/ "!https://secure.travis-ci.org/sebhoss/annotated-contracts.png!":http://travis-ci.org/sebhoss/annotated-contracts !https://coveralls.io/repos/sebhoss/annotated-contracts/badge.png(Coverage Status)!:https://coveralls.io/r/sebhoss/annotated-contracts
 
 p. "Design by Contract":http://en.wikipedia.org/wiki/Design_by_contract based on annotations. It allows easy usage of contracts without any need for extra JVM parameters, JVM agents, special classloaders or compilers. Instead it leverages "dependency injection":http://en.wikipedia.org/wiki/Dependency_injection to capture method calls which are annotation with a contract. The project is highly flexible and can be extended to support new contract annotations and other contract clause definitions (see below).
 
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java b/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
index 48a5f51..d83fd03 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
@@ -12,16 +12,18 @@
 import javax.enterprise.inject.Produces;
 
 import com.github.sebhoss.nullanalysis.Nullsafe;
+import com.github.sebhoss.warnings.CompilerWarnings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.Service;
 
 // TODO: We only need this for pax-exam
 class PaxExamConfiguration {
 
-    @Produces
-    @Default
-    Set<Service> services() {
-        return Nullsafe.nullsafe(ImmutableSet.<Service> of());
-    }
+	@Produces
+	@Default
+	@SuppressWarnings(CompilerWarnings.STATIC_METHOD)
+	Set<Service> services() {
+		return Nullsafe.nullsafe(ImmutableSet.<Service> of());
+	}
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/test/java/com/github/sebhoss/contract/example/CdiJavaScriptInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/test/java/com/github/sebhoss/contract/example/CdiJavaScriptInsuranceCompanyTest.java
index 3a0648e..1b0eea1 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/test/java/com/github/sebhoss/contract/example/CdiJavaScriptInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-javascript-example/src/test/java/com/github/sebhoss/contract/example/CdiJavaScriptInsuranceCompanyTest.java
@@ -29,6 +29,6 @@ public class CdiJavaScriptInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java b/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
index 48a5f51..93c20c2 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
@@ -12,6 +12,7 @@
 import javax.enterprise.inject.Produces;
 
 import com.github.sebhoss.nullanalysis.Nullsafe;
+import com.github.sebhoss.warnings.CompilerWarnings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.Service;
 
@@ -20,6 +21,7 @@ class PaxExamConfiguration {
 
     @Produces
     @Default
+    @SuppressWarnings(CompilerWarnings.STATIC_METHOD)
     Set<Service> services() {
         return Nullsafe.nullsafe(ImmutableSet.<Service> of());
     }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/test/java/com/github/sebhoss/contract/example/CdiJexlInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/test/java/com/github/sebhoss/contract/example/CdiJexlInsuranceCompanyTest.java
index ce97bfc..ae97409 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/test/java/com/github/sebhoss/contract/example/CdiJexlInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-jexl-example/src/test/java/com/github/sebhoss/contract/example/CdiJexlInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiJexlInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java b/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
index 48a5f51..93c20c2 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
@@ -12,6 +12,7 @@
 import javax.enterprise.inject.Produces;
 
 import com.github.sebhoss.nullanalysis.Nullsafe;
+import com.github.sebhoss.warnings.CompilerWarnings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.Service;
 
@@ -20,6 +21,7 @@ class PaxExamConfiguration {
 
     @Produces
     @Default
+    @SuppressWarnings(CompilerWarnings.STATIC_METHOD)
     Set<Service> services() {
         return Nullsafe.nullsafe(ImmutableSet.<Service> of());
     }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/test/java/com/github/sebhoss/contract/example/CdiJuelInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/test/java/com/github/sebhoss/contract/example/CdiJuelInsuranceCompanyTest.java
index c690956..f239b0d 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/test/java/com/github/sebhoss/contract/example/CdiJuelInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-juel-example/src/test/java/com/github/sebhoss/contract/example/CdiJuelInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiJuelInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java b/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
index 8b989e6..93c20c2 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/main/java/com/github/sebhoss/contract/example/PaxExamConfiguration.java
@@ -17,11 +17,11 @@
 import com.google.common.util.concurrent.Service;
 
 // TODO: We only need this for pax-exam
-@SuppressWarnings(CompilerWarnings.STATIC_METHOD)
 class PaxExamConfiguration {
 
     @Produces
     @Default
+    @SuppressWarnings(CompilerWarnings.STATIC_METHOD)
     Set<Service> services() {
         return Nullsafe.nullsafe(ImmutableSet.<Service> of());
     }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/test/java/com/github/sebhoss/contract/example/CdiMvelInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/test/java/com/github/sebhoss/contract/example/CdiMvelInsuranceCompanyTest.java
index 8c22654..8248ace 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/test/java/com/github/sebhoss/contract/example/CdiMvelInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-mvel-example/src/test/java/com/github/sebhoss/contract/example/CdiMvelInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiMvelInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-ognl-example/src/test/java/com/github/sebhoss/contract/example/CdiOgnlInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-ognl-example/src/test/java/com/github/sebhoss/contract/example/CdiOgnlInsuranceCompanyTest.java
index ddf9154..9b89c28 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-ognl-example/src/test/java/com/github/sebhoss/contract/example/CdiOgnlInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-ognl-example/src/test/java/com/github/sebhoss/contract/example/CdiOgnlInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiOgnlInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-spel-example/src/test/java/com/github/sebhoss/contract/example/CdiSpElInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-spel-example/src/test/java/com/github/sebhoss/contract/example/CdiSpElInsuranceCompanyTest.java
index 2644aac..9ff7d8c 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-spel-example/src/test/java/com/github/sebhoss/contract/example/CdiSpElInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-spel-example/src/test/java/com/github/sebhoss/contract/example/CdiSpElInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiSpElInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-cdi-examples/contract-cdi-uel-example/src/test/java/com/github/sebhoss/contract/example/CdiUelInsuranceCompanyTest.java b/contract-examples/contract-cdi-examples/contract-cdi-uel-example/src/test/java/com/github/sebhoss/contract/example/CdiUelInsuranceCompanyTest.java
index ae6e732..2284452 100644
--- a/contract-examples/contract-cdi-examples/contract-cdi-uel-example/src/test/java/com/github/sebhoss/contract/example/CdiUelInsuranceCompanyTest.java
+++ b/contract-examples/contract-cdi-examples/contract-cdi-uel-example/src/test/java/com/github/sebhoss/contract/example/CdiUelInsuranceCompanyTest.java
@@ -29,7 +29,7 @@ public class CdiUelInsuranceCompanyTest extends InsuranceCompanyTest {
      */
     @Before
     public void bind() {
-        insurance = injectedCompany;
+        setInsuranceCompany(injectedCompany);
     }
 
 }
diff --git a/contract-examples/contract-example-model/pom.xml b/contract-examples/contract-example-model/pom.xml
index d1c84e9..298b4ec 100644
--- a/contract-examples/contract-example-model/pom.xml
+++ b/contract-examples/contract-example-model/pom.xml
@@ -45,4 +45,26 @@
       <artifactId>junit</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-examples/contract-example-model/src/main/java/com/github/sebhoss/contract/example/InsuranceCompanyTest.java b/contract-examples/contract-example-model/src/main/java/com/github/sebhoss/contract/example/InsuranceCompanyTest.java
index b310621..5bdadee 100644
--- a/contract-examples/contract-example-model/src/main/java/com/github/sebhoss/contract/example/InsuranceCompanyTest.java
+++ b/contract-examples/contract-example-model/src/main/java/com/github/sebhoss/contract/example/InsuranceCompanyTest.java
@@ -6,14 +6,14 @@
  */
 package com.github.sebhoss.contract.example;
 
-import org.eclipse.jdt.annotation.Nullable;
+import com.github.sebhoss.nullanalysis.Nullsafe;
+import com.github.sebhoss.warnings.CompilerWarnings;
+
 import org.junit.Assert;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
-import com.github.sebhoss.warnings.CompilerWarnings;
-
 /**
  * Test cases for the {@link InsuranceCompany}.
  */
@@ -22,17 +22,24 @@ public abstract class InsuranceCompanyTest {
 
     /** Catches expected exceptions */
     @Rule
-    public ExpectedException   thrown = ExpectedException.none();
+    public ExpectedException thrown = ExpectedException.none();
 
-    @Nullable
-    protected InsuranceCompany insurance;
+    private InsuranceCompany insurance;
+
+    protected InsuranceCompany getInsuranceCompany() {
+        return insurance;
+    }
+
+    protected void setInsuranceCompany(final InsuranceCompany insurance) {
+        this.insurance = insurance;
+    }
 
     /**
      * Ensures that the insurance company can calculate payouts based on a positive damage input.
      */
     @Test
     public void shouldAcceptPositiveDamages() {
-        final double result = insurance.calculateCover(10);
+        final double result = Nullsafe.nullsafe(getInsuranceCompany()).calculateCover(10);
 
         Assert.assertEquals(5.0, result, 0d);
     }
@@ -45,7 +52,7 @@ public void shouldNotAcceptNegativeDamages() {
         thrown.expect(IllegalStateException.class);
         thrown.expectMessage("Reported damage must be positive!");
 
-        insurance.calculateCover(-10);
+        Nullsafe.nullsafe(getInsuranceCompany()).calculateCover(-10);
     }
 
     /**
@@ -56,7 +63,7 @@ public void shouldNotAcceptHighDamages() {
         thrown.expect(IllegalStateException.class);
         thrown.expectMessage("We won't pay that!");
 
-        insurance.calculateCover(5001);
+        Nullsafe.nullsafe(getInsuranceCompany()).calculateCover(5001);
     }
 
     /**
@@ -67,7 +74,7 @@ public void shouldNotPerformHighPayout() {
         thrown.expect(IllegalArgumentException.class);
         thrown.expectMessage("We can't pay that much!");
 
-        insurance.calculateCover(5000);
+        Nullsafe.nullsafe(getInsuranceCompany()).calculateCover(5000);
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/JavaScriptInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/GuiceJavaScriptInsuranceCompanyTest.java
similarity index 81%
rename from contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/JavaScriptInsuranceCompanyTest.java
rename to contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/GuiceJavaScriptInsuranceCompanyTest.java
index 951f53a..cb57029 100644
--- a/contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/JavaScriptInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-javascript-example/src/test/java/com/github/sebhoss/contract/example/GuiceJavaScriptInsuranceCompanyTest.java
@@ -14,7 +14,7 @@
 /**
  * Test cases for a JavaScript {@link InsuranceCompany}.
  */
-public class JavaScriptInsuranceCompanyTest extends InsuranceCompanyTest {
+public class GuiceJavaScriptInsuranceCompanyTest extends InsuranceCompanyTest {
 
     /**
      * Creates a new insurance company for each test.
@@ -22,7 +22,7 @@ public class JavaScriptInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceJavaScriptModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/JexlInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/GuiceJexlInsuranceCompanyTest.java
similarity index 82%
rename from contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/JexlInsuranceCompanyTest.java
rename to contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/GuiceJexlInsuranceCompanyTest.java
index 6d6167e..ab47555 100644
--- a/contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/JexlInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-jexl-example/src/test/java/com/github/sebhoss/contract/example/GuiceJexlInsuranceCompanyTest.java
@@ -14,7 +14,7 @@
 /**
  * Test cases for a JEXL {@link InsuranceCompany}.
  */
-public class JexlInsuranceCompanyTest extends InsuranceCompanyTest {
+public class GuiceJexlInsuranceCompanyTest extends InsuranceCompanyTest {
 
     /**
      * Creates a new insurance company for each test.
@@ -22,7 +22,7 @@ public class JexlInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceJexlModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/JuelInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/GuiceJuelInsuranceCompanyTest.java
similarity index 82%
rename from contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/JuelInsuranceCompanyTest.java
rename to contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/GuiceJuelInsuranceCompanyTest.java
index c757ec4..02b1fd5 100644
--- a/contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/JuelInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-juel-example/src/test/java/com/github/sebhoss/contract/example/GuiceJuelInsuranceCompanyTest.java
@@ -14,7 +14,7 @@
 /**
  * Test cases for a JUEL {@link InsuranceCompany}.
  */
-public class JuelInsuranceCompanyTest extends InsuranceCompanyTest {
+public class GuiceJuelInsuranceCompanyTest extends InsuranceCompanyTest {
 
     /**
      * Creates a new insurance company for each test.
@@ -22,7 +22,7 @@ public class JuelInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceJuelModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/MvelInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/GuiceMvelInsuranceCompanyTest.java
similarity index 82%
rename from contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/MvelInsuranceCompanyTest.java
rename to contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/GuiceMvelInsuranceCompanyTest.java
index feb6f33..e744098 100644
--- a/contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/MvelInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-mvel-example/src/test/java/com/github/sebhoss/contract/example/GuiceMvelInsuranceCompanyTest.java
@@ -14,7 +14,7 @@
 /**
  * Test cases for a MVEL {@link InsuranceCompany}.
  */
-public class MvelInsuranceCompanyTest extends InsuranceCompanyTest {
+public class GuiceMvelInsuranceCompanyTest extends InsuranceCompanyTest {
 
     /**
      * Creates a new insurance company for each test.
@@ -22,7 +22,7 @@ public class MvelInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceMvelModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/OgnlInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/GuiceOgnlInsuranceCompanyTest.java
similarity index 82%
rename from contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/OgnlInsuranceCompanyTest.java
rename to contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/GuiceOgnlInsuranceCompanyTest.java
index 74438ca..6120837 100644
--- a/contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/OgnlInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-ognl-example/src/test/java/com/github/sebhoss/contract/example/GuiceOgnlInsuranceCompanyTest.java
@@ -14,7 +14,7 @@
 /**
  * Test cases for a OGNL {@link InsuranceCompany}.
  */
-public class OgnlInsuranceCompanyTest extends InsuranceCompanyTest {
+public class GuiceOgnlInsuranceCompanyTest extends InsuranceCompanyTest {
 
     /**
      * Creates a new insurance company for each test.
@@ -22,7 +22,7 @@ public class OgnlInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceOgnlModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-spel-example/src/test/java/com/github/sebhoss/contract/example/GuiceSpELInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-spel-example/src/test/java/com/github/sebhoss/contract/example/GuiceSpELInsuranceCompanyTest.java
index aca2872..5aa08c3 100644
--- a/contract-examples/contract-guice-examples/contract-guice-spel-example/src/test/java/com/github/sebhoss/contract/example/GuiceSpELInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-spel-example/src/test/java/com/github/sebhoss/contract/example/GuiceSpELInsuranceCompanyTest.java
@@ -22,7 +22,7 @@ public class GuiceSpELInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceSpELModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-guice-examples/contract-guice-uel-example/src/test/java/com/github/sebhoss/contract/example/GuiceUelInsuranceCompanyTest.java b/contract-examples/contract-guice-examples/contract-guice-uel-example/src/test/java/com/github/sebhoss/contract/example/GuiceUelInsuranceCompanyTest.java
index ffd5988..104e5e0 100644
--- a/contract-examples/contract-guice-examples/contract-guice-uel-example/src/test/java/com/github/sebhoss/contract/example/GuiceUelInsuranceCompanyTest.java
+++ b/contract-examples/contract-guice-examples/contract-guice-uel-example/src/test/java/com/github/sebhoss/contract/example/GuiceUelInsuranceCompanyTest.java
@@ -22,7 +22,7 @@ public class GuiceUelInsuranceCompanyTest extends InsuranceCompanyTest {
     @Before
     public void createCompany() {
         final Injector injector = Guice.createInjector(new GuiceUelModule());
-        insurance = injector.getInstance(InsuranceCompany.class);
+        setInsuranceCompany(injector.getInstance(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/main/java/com/github/sebhoss/contract/example/SpringJavaScriptConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/main/java/com/github/sebhoss/contract/example/SpringJavaScriptConfiguration.java
index 439b916..00968c3 100644
--- a/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/main/java/com/github/sebhoss/contract/example/SpringJavaScriptConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/main/java/com/github/sebhoss/contract/example/SpringJavaScriptConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultJavaScriptConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/test/java/com/github/sebhoss/contract/example/SpringJavaScriptInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/test/java/com/github/sebhoss/contract/example/SpringJavaScriptInsuranceCompanyTest.java
index cd439c2..95d1cf8 100644
--- a/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/test/java/com/github/sebhoss/contract/example/SpringJavaScriptInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-javascript-example/src/test/java/com/github/sebhoss/contract/example/SpringJavaScriptInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringJavaScriptInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringJavaScriptConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/main/java/com/github/sebhoss/contract/example/SpringJexlConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/main/java/com/github/sebhoss/contract/example/SpringJexlConfiguration.java
index d7b6006..9581226 100644
--- a/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/main/java/com/github/sebhoss/contract/example/SpringJexlConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/main/java/com/github/sebhoss/contract/example/SpringJexlConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultJEXLConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/test/java/com/github/sebhoss/contract/example/SpringJEXLInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/test/java/com/github/sebhoss/contract/example/SpringJEXLInsuranceCompanyTest.java
index b0db6fa..205a14b 100644
--- a/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/test/java/com/github/sebhoss/contract/example/SpringJEXLInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-jexl-example/src/test/java/com/github/sebhoss/contract/example/SpringJEXLInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringJEXLInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringJexlConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-juel-example/src/main/java/com/github/sebhoss/contract/example/SpringJuelConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-juel-example/src/main/java/com/github/sebhoss/contract/example/SpringJuelConfiguration.java
index 11fe2d2..f7f4417 100644
--- a/contract-examples/contract-spring-examples/contract-spring-juel-example/src/main/java/com/github/sebhoss/contract/example/SpringJuelConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-juel-example/src/main/java/com/github/sebhoss/contract/example/SpringJuelConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultJUELConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-juel-example/src/test/java/com/github/sebhoss/contract/example/SpringJUELInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-juel-example/src/test/java/com/github/sebhoss/contract/example/SpringJUELInsuranceCompanyTest.java
index 31cf4cb..5d21fcd 100644
--- a/contract-examples/contract-spring-examples/contract-spring-juel-example/src/test/java/com/github/sebhoss/contract/example/SpringJUELInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-juel-example/src/test/java/com/github/sebhoss/contract/example/SpringJUELInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringJUELInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringJuelConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/main/java/com/github/sebhoss/contract/example/SpringMvelConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/main/java/com/github/sebhoss/contract/example/SpringMvelConfiguration.java
index cb1ff82..b52e2a1 100644
--- a/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/main/java/com/github/sebhoss/contract/example/SpringMvelConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/main/java/com/github/sebhoss/contract/example/SpringMvelConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultMVELConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/test/java/com/github/sebhoss/contract/example/SpringMVELInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/test/java/com/github/sebhoss/contract/example/SpringMVELInsuranceCompanyTest.java
index fdeaf5a..d7a7465 100644
--- a/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/test/java/com/github/sebhoss/contract/example/SpringMVELInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-mvel-example/src/test/java/com/github/sebhoss/contract/example/SpringMVELInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringMVELInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringMvelConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/main/java/com/github/sebhoss/contract/example/SpringOgnlConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/main/java/com/github/sebhoss/contract/example/SpringOgnlConfiguration.java
index b61d836..7a4249e 100644
--- a/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/main/java/com/github/sebhoss/contract/example/SpringOgnlConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/main/java/com/github/sebhoss/contract/example/SpringOgnlConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultOGNLConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/test/java/com/github/sebhoss/contract/example/SpringOgnlInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/test/java/com/github/sebhoss/contract/example/SpringOgnlInsuranceCompanyTest.java
index dc9364a..9b0dfef 100644
--- a/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/test/java/com/github/sebhoss/contract/example/SpringOgnlInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-ognl-example/src/test/java/com/github/sebhoss/contract/example/SpringOgnlInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringOgnlInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringOgnlConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-spel-example/src/main/java/com/github/sebhoss/contract/example/SpringSpELConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-spel-example/src/main/java/com/github/sebhoss/contract/example/SpringSpELConfiguration.java
index fb9f346..29a196f 100644
--- a/contract-examples/contract-spring-examples/contract-spring-spel-example/src/main/java/com/github/sebhoss/contract/example/SpringSpELConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-spel-example/src/main/java/com/github/sebhoss/contract/example/SpringSpELConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultSpELConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-spel-example/src/test/java/com/github/sebhoss/contract/example/SpringSpELInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-spel-example/src/test/java/com/github/sebhoss/contract/example/SpringSpELInsuranceCompanyTest.java
index 4d43aa5..e8cd591 100644
--- a/contract-examples/contract-spring-examples/contract-spring-spel-example/src/test/java/com/github/sebhoss/contract/example/SpringSpELInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-spel-example/src/test/java/com/github/sebhoss/contract/example/SpringSpELInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringSpELInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringSpELConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-examples/contract-spring-examples/contract-spring-uel-example/src/main/java/com/github/sebhoss/contract/example/SpringUelConfiguration.java b/contract-examples/contract-spring-examples/contract-spring-uel-example/src/main/java/com/github/sebhoss/contract/example/SpringUelConfiguration.java
index 7325369..476669c 100644
--- a/contract-examples/contract-spring-examples/contract-spring-uel-example/src/main/java/com/github/sebhoss/contract/example/SpringUelConfiguration.java
+++ b/contract-examples/contract-spring-examples/contract-spring-uel-example/src/main/java/com/github/sebhoss/contract/example/SpringUelConfiguration.java
@@ -6,6 +6,10 @@
  */
 package com.github.sebhoss.contract.example;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.configuration.DefaultUELConfiguration;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-examples/contract-spring-examples/contract-spring-uel-example/src/test/java/com/github/sebhoss/contract/example/SpringUELInsuranceCompanyTest.java b/contract-examples/contract-spring-examples/contract-spring-uel-example/src/test/java/com/github/sebhoss/contract/example/SpringUELInsuranceCompanyTest.java
index 133fc38..97f41b5 100644
--- a/contract-examples/contract-spring-examples/contract-spring-uel-example/src/test/java/com/github/sebhoss/contract/example/SpringUELInsuranceCompanyTest.java
+++ b/contract-examples/contract-spring-examples/contract-spring-uel-example/src/test/java/com/github/sebhoss/contract/example/SpringUELInsuranceCompanyTest.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.example;
 
 import org.junit.Before;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
@@ -22,7 +24,7 @@ public class SpringUELInsuranceCompanyTest extends InsuranceCompanyTest {
     @SuppressWarnings(CompilerWarnings.RESOURCE)
     public void createCompany() {
         final ApplicationContext context = new AnnotationConfigApplicationContext(SpringUelConfiguration.class);
-        insurance = context.getBean(InsuranceCompany.class);
+        setInsuranceCompany(context.getBean(InsuranceCompany.class));
     }
 
 }
diff --git a/contract-frameworks/contract-cdi/contract-cdi-defaults/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-defaults/pom.xml
index 858508b..e4e5330 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-defaults/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-defaults/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-interceptor</artifactId>
@@ -36,5 +40,54 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-paranamer</artifactId>
     </dependency>
+    <dependency>
+      <groupId>javax.el</groupId>
+      <artifactId>javax.el-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.thoughtworks.paranamer</groupId>
+      <artifactId>paranamer</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.cal10n</groupId>
+      <artifactId>cal10n-api</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-interceptor because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-interceptor</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-javascript/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-javascript/pom.xml
index 9e0f34e..8ea657b 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-javascript/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-javascript/pom.xml
@@ -28,6 +28,14 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
@@ -37,4 +45,46 @@
       <artifactId>contract-scriptengine</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-scriptengine because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-scriptengine</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-jexl/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-jexl/pom.xml
index 85267a5..4110594 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-jexl/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-jexl/pom.xml
@@ -28,6 +28,14 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
@@ -36,5 +44,51 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-jexl</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-jexl</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-jexl because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-jexl</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-juel/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-juel/pom.xml
index a682f5b..822354f 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-juel/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-juel/pom.xml
@@ -28,13 +28,69 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
+      <exclusions>
+        <exclusion>
+          <artifactId>javax.el-api</artifactId>
+          <groupId>javax.el</groupId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-juel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-juel because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-juel</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-mvel/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-mvel/pom.xml
index 3274baf..0c72d4e 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-mvel/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-mvel/pom.xml
@@ -30,11 +30,52 @@
   <dependencies>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
-      <artifactId>contract-cdi-defaults</artifactId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
     </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-mvel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-mvel because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-mvel</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-ognl/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-ognl/pom.xml
index cdd9963..504fc82 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-ognl/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-ognl/pom.xml
@@ -28,6 +28,14 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
@@ -37,4 +45,46 @@
       <artifactId>contract-ognl</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-juel because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-ognl</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-spel/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-spel/pom.xml
index ca6560e..89a8148 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-spel/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-spel/pom.xml
@@ -28,6 +28,14 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
@@ -37,4 +45,46 @@
       <artifactId>contract-spel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-juel because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-spel</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/contract-cdi-uel/pom.xml b/contract-frameworks/contract-cdi/contract-cdi-uel/pom.xml
index e8e6006..1537c9d 100644
--- a/contract-frameworks/contract-cdi/contract-cdi-uel/pom.xml
+++ b/contract-frameworks/contract-cdi/contract-cdi-uel/pom.xml
@@ -28,6 +28,14 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-cdi-defaults</artifactId>
@@ -35,6 +43,54 @@
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-uel</artifactId>
+      <exclusions>
+        <exclusion>
+          <artifactId>javax.el</artifactId>
+          <groupId>org.glassfish</groupId>
+        </exclusion>
+      </exclusions>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+            <!--
+              Ignore contract-cdi-defaults because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-cdi-defaults</usedDependency>
+            <!--
+              Ignore contract-juel because it is only implictly referenced
+              through the classpath
+             -->
+            <usedDependency>com.github.sebhoss.contract:contract-uel</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-cdi/pom.xml b/contract-frameworks/contract-cdi/pom.xml
index be0d33c..c2f645b 100644
--- a/contract-frameworks/contract-cdi/pom.xml
+++ b/contract-frameworks/contract-cdi/pom.xml
@@ -47,6 +47,12 @@
       <groupId>javax.enterprise</groupId>
       <artifactId>cdi-api</artifactId>
       <scope>provided</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>javax.el</groupId>
+          <artifactId>javax.el-api</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
   </dependencies>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-defaults/pom.xml b/contract-frameworks/contract-guice/contract-guice-defaults/pom.xml
index 74fdd64..5c1914d 100644
--- a/contract-frameworks/contract-guice/contract-guice-defaults/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-defaults/pom.xml
@@ -23,4 +23,64 @@
   <!--                               INFORMATIONS                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <artifactId>contract-guice-defaults</artifactId>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                               DEPENDENCIES                              -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-aop</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-paranamer</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.cal10n</groupId>
+      <artifactId>cal10n-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.thoughtworks.paranamer</groupId>
+      <artifactId>paranamer</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>aopalliance</groupId>
+      <artifactId>aopalliance</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.inject.extensions</groupId>
+      <artifactId>guice-multibindings</artifactId>
+    </dependency>
+  </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-javascript/pom.xml b/contract-frameworks/contract-guice/contract-guice-javascript/pom.xml
index 9185579..12a35e7 100644
--- a/contract-frameworks/contract-guice/contract-guice-javascript/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-javascript/pom.xml
@@ -28,13 +28,67 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
+      <exclusions>
+        <exclusion>
+          <artifactId>paranamer</artifactId>
+          <groupId>com.thoughtworks.paranamer</groupId>
+        </exclusion>
+        <exclusion>
+          <artifactId>contract-aop</artifactId>
+          <groupId>com.github.sebhoss.contract</groupId>
+        </exclusion>
+        <exclusion>
+          <artifactId>contract-paranamer</artifactId>
+          <groupId>com.github.sebhoss.contract</groupId>
+        </exclusion>
+        <exclusion>
+          <artifactId>guice-multibindings</artifactId>
+          <groupId>com.google.inject.extensions</groupId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-scriptengine</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-jexl/pom.xml b/contract-frameworks/contract-guice/contract-guice-jexl/pom.xml
index 5aaf92e..8fd2c4e 100644
--- a/contract-frameworks/contract-guice/contract-guice-jexl/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-jexl/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-jexl</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-juel/pom.xml b/contract-frameworks/contract-guice/contract-guice-juel/pom.xml
index 0d6eebe..dc696d6 100644
--- a/contract-frameworks/contract-guice/contract-guice-juel/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-juel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -36,5 +40,41 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-juel</artifactId>
     </dependency>
+    <dependency>
+      <groupId>de.odysseus.juel</groupId>
+      <artifactId>juel-api</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-mvel/pom.xml b/contract-frameworks/contract-guice/contract-guice-mvel/pom.xml
index cc638ac..fe12634 100644
--- a/contract-frameworks/contract-guice/contract-guice-mvel/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-mvel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-mvel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-ognl/pom.xml b/contract-frameworks/contract-guice/contract-guice-ognl/pom.xml
index 8f3c4de..fd5d710 100644
--- a/contract-frameworks/contract-guice/contract-guice-ognl/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-ognl/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-ognl</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-spel/pom.xml b/contract-frameworks/contract-guice/contract-guice-spel/pom.xml
index 73c1599..da195e5 100644
--- a/contract-frameworks/contract-guice/contract-guice-spel/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-spel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-spel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/contract-guice-uel/pom.xml b/contract-frameworks/contract-guice/contract-guice-uel/pom.xml
index f8600bf..390c83d 100644
--- a/contract-frameworks/contract-guice/contract-guice-uel/pom.xml
+++ b/contract-frameworks/contract-guice/contract-guice-uel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-guice-defaults</artifactId>
@@ -36,5 +40,41 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-uel</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.glassfish</groupId>
+      <artifactId>javax.el</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <!--
+            Ignore common annotations because @SuppressWarnings is not retained
+            in byte code. There the plugin detects a false positive.
+           -->
+          <usedDependencies>
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-guice/pom.xml b/contract-frameworks/contract-guice/pom.xml
index 3be8fe5..444c6b5 100644
--- a/contract-frameworks/contract-guice/pom.xml
+++ b/contract-frameworks/contract-guice/pom.xml
@@ -43,21 +43,9 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
-    <dependency>
-      <groupId>com.github.sebhoss.contract</groupId>
-      <artifactId>contract-aop</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>com.github.sebhoss.contract</groupId>
-      <artifactId>contract-paranamer</artifactId>
-    </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
       <artifactId>guice</artifactId>
     </dependency>
-    <dependency>
-      <groupId>com.google.inject.extensions</groupId>
-      <artifactId>guice-multibindings</artifactId>
-    </dependency>
   </dependencies>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/pom.xml b/contract-frameworks/contract-spring/contract-spring-defaults/pom.xml
index 51da7cc..f1afab6 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/pom.xml
@@ -23,4 +23,56 @@
   <!--                               INFORMATIONS                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <artifactId>contract-spring-defaults</artifactId>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                               DEPENDENCIES                              -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-core</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-aspect</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>javax.inject</groupId>
+      <artifactId>javax.inject</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.cal10n</groupId>
+      <artifactId>cal10n-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss</groupId>
+      <artifactId>null-analysis</artifactId>
+    </dependency>
+  </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/AspectConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/AspectConfiguration.java
index 94f00ca..058b91e 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/AspectConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/AspectConfiguration.java
@@ -6,6 +6,8 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
 
 /**
  * Enables Spring-AOP.
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/BaseConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/BaseConfiguration.java
index 545242b..b6f7b47 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/BaseConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/configuration/BaseConfiguration.java
@@ -10,12 +10,15 @@
 import com.github.sebhoss.contract.verifier.ParameterNamesLookupConfiguration;
 import com.github.sebhoss.contract.verifier.impl.ErrorMessageConfiguration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 /**
  * Base configuration for Spring-based projects. Extend this class and @Import a specific language configuration.
  */
 @Configuration
 @Import({ AspectConfiguration.class, ParameterNamesLookupConfiguration.class,
-        ContractConfiguration.class, ErrorMessageConfiguration.class })
+    ContractConfiguration.class, ErrorMessageConfiguration.class })
 public abstract class BaseConfiguration {
 
     // Meta-configuration
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ContractConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ContractConfiguration.java
index 7faeeae..0bff010 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ContractConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ContractConfiguration.java
@@ -13,13 +13,16 @@
 import com.github.sebhoss.contract.verifier.impl.ContractSyntaxCheckConfiguration;
 import com.github.sebhoss.contract.verifier.impl.ContractVerifierConfiguration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 /**
  * Meta-configuration for several contract interfaces.
  */
 @Configuration
 @Import({ ContractExceptionFactoryConfiguration.class, ContractRetrievalConfiguration.class,
-        ContractSemanticCheckConfiguration.class, ContractSyntaxCheckConfiguration.class,
-        ContractVerifierConfiguration.class, ContractAspectConfiguration.class })
+    ContractSemanticCheckConfiguration.class, ContractSyntaxCheckConfiguration.class,
+    ContractVerifierConfiguration.class, ContractAspectConfiguration.class })
 public class ContractConfiguration {
 
     // Meta-configuration
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ParameterNamesLookupConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ParameterNamesLookupConfiguration.java
index 754377a..2ff3c75 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ParameterNamesLookupConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/ParameterNamesLookupConfiguration.java
@@ -6,10 +6,12 @@
  */
 package com.github.sebhoss.contract.verifier;
 
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
-
 import com.github.sebhoss.warnings.CompilerWarnings;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
+
 /**
  * Configuration for the {@link ParameterNamesLookup}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractAspectConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractAspectConfiguration.java
index 1445bd6..7bd40a1 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractAspectConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractAspectConfiguration.java
@@ -12,6 +12,9 @@
 import com.github.sebhoss.contract.verifier.ContractVerifierFactory;
 import com.github.sebhoss.nullanalysis.Nullsafe;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configuration for the {@link ContractAspect}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractExceptionFactoryConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractExceptionFactoryConfiguration.java
index a0e81d0..4e4384e 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractExceptionFactoryConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractExceptionFactoryConfiguration.java
@@ -13,6 +13,9 @@
 import com.github.sebhoss.contract.verifier.ContractExceptionFactory;
 import com.github.sebhoss.nullanalysis.Nullsafe;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configures the {@link ContractExceptionFactory}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractRetrievalConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractRetrievalConfiguration.java
index fa0b8fe..0bd9ef4 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractRetrievalConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractRetrievalConfiguration.java
@@ -9,6 +9,9 @@
 import com.github.sebhoss.contract.verifier.ContractRetrieval;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configuration for the {@link ContractRetrieval}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSemanticCheckConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSemanticCheckConfiguration.java
index 8eed5e8..d49f668 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSemanticCheckConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSemanticCheckConfiguration.java
@@ -11,6 +11,9 @@
 import com.github.sebhoss.contract.verifier.ContractSemanticCheck;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configuration for the {@link ContractSemanticCheck}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSyntaxCheckConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSyntaxCheckConfiguration.java
index 2d0797c..6dbd077 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSyntaxCheckConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractSyntaxCheckConfiguration.java
@@ -11,6 +11,9 @@
 import com.github.sebhoss.contract.verifier.ContractSyntaxCheck;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configuration for the {@link ContractSyntaxCheck}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractVerifierConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractVerifierConfiguration.java
index a319497..3c4664a 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractVerifierConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ContractVerifierConfiguration.java
@@ -11,7 +11,9 @@
 import com.github.sebhoss.contract.verifier.ContractContextFactory;
 import com.github.sebhoss.contract.verifier.ContractVerifierFactory;
 import com.github.sebhoss.contract.verifier.ParameterNamesLookupConfiguration;
-import com.github.sebhoss.warnings.CompilerWarnings;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
 
 /**
  * Configuration for the {@link ContractVerifierFactory}.
@@ -47,7 +49,6 @@ public class ContractVerifierConfiguration {
      * @return A context-based {@link ContractVerifierFactory}.
      */
     @Bean
-    @SuppressWarnings(CompilerWarnings.NULL)
     public ContractVerifierFactory contextBasedFactory() {
         return new ContextBasedContractVerifierFactory(retrieval.annotationBasedRetrieval(),
                 syntaxCheck.noSyntaxChecks(), namesLookup.localVariableTableLookup(), semanticCheck.noSemanticChecks(),
diff --git a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ErrorMessageConfiguration.java b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ErrorMessageConfiguration.java
index 8576d70..ab649b7 100644
--- a/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ErrorMessageConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-defaults/src/main/java/com/github/sebhoss/contract/verifier/impl/ErrorMessageConfiguration.java
@@ -13,6 +13,9 @@
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 /**
  * Configuration for the {@link IMessageConveyor}.
  */
diff --git a/contract-frameworks/contract-spring/contract-spring-javascript/pom.xml b/contract-frameworks/contract-spring/contract-spring-javascript/pom.xml
index e776cd0..ecd434c 100644
--- a/contract-frameworks/contract-spring/contract-spring-javascript/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-javascript/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -36,5 +40,41 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-scriptengine</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss</groupId>
+      <artifactId>null-analysis</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/configuration/DefaultJavaScriptConfiguration.java b/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/configuration/DefaultJavaScriptConfiguration.java
index 008642a..49001d3 100644
--- a/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/configuration/DefaultJavaScriptConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/configuration/DefaultJavaScriptConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.JavaScriptConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/verifier/JavaScriptConfiguration.java b/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/verifier/JavaScriptConfiguration.java
index 8a02fc6..4032015 100644
--- a/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/verifier/JavaScriptConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-javascript/src/main/java/com/github/sebhoss/contract/verifier/JavaScriptConfiguration.java
@@ -9,6 +9,9 @@
 import javax.script.ScriptEngine;
 import javax.script.ScriptEngineManager;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.nullanalysis.Nullsafe;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-frameworks/contract-spring/contract-spring-jexl/pom.xml b/contract-frameworks/contract-spring/contract-spring-jexl/pom.xml
index bcc0ff7..cb9170c 100644
--- a/contract-frameworks/contract-spring/contract-spring-jexl/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-jexl/pom.xml
@@ -28,13 +28,75 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
+      <exclusions>
+      	<exclusion>
+      		<artifactId>commons-logging</artifactId>
+      		<groupId>commons-logging</groupId>
+      	</exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-jexl</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-jexl</artifactId>
+      <exclusions>
+      	<exclusion>
+      		<artifactId>commons-logging</artifactId>
+      		<groupId>commons-logging</groupId>
+      	</exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+    	<groupId>org.springframework</groupId>
+    	<artifactId>spring-context</artifactId>
+    	<exclusions>
+    		<exclusion>
+    			<artifactId>commons-logging</artifactId>
+    			<groupId>commons-logging</groupId>
+    		</exclusion>
+    	</exclusions>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/configuration/DefaultJEXLConfiguration.java b/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/configuration/DefaultJEXLConfiguration.java
index e11a7dc..caee6c8 100644
--- a/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/configuration/DefaultJEXLConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/configuration/DefaultJEXLConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.JexlConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/verifier/JexlConfiguration.java b/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/verifier/JexlConfiguration.java
index 0ddcd0f..dc62b13 100644
--- a/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/verifier/JexlConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-jexl/src/main/java/com/github/sebhoss/contract/verifier/JexlConfiguration.java
@@ -7,6 +7,8 @@
 package com.github.sebhoss.contract.verifier;
 
 import org.apache.commons.jexl2.JexlEngine;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
 
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-frameworks/contract-spring/contract-spring-juel/pom.xml b/contract-frameworks/contract-spring/contract-spring-juel/pom.xml
index 5625c08..9311fad 100644
--- a/contract-frameworks/contract-spring/contract-spring-juel/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-juel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -36,5 +40,45 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-juel</artifactId>
     </dependency>
+    <dependency>
+      <groupId>de.odysseus.juel</groupId>
+      <artifactId>juel-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss</groupId>
+      <artifactId>null-analysis</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/configuration/DefaultJUELConfiguration.java b/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/configuration/DefaultJUELConfiguration.java
index 0bc5fb5..c2e4290 100644
--- a/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/configuration/DefaultJUELConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/configuration/DefaultJUELConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.JuelConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/verifier/JuelConfiguration.java b/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/verifier/JuelConfiguration.java
index 18b80c7..d19c227 100644
--- a/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/verifier/JuelConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-juel/src/main/java/com/github/sebhoss/contract/verifier/JuelConfiguration.java
@@ -8,6 +8,9 @@
 
 import javax.el.ExpressionFactory;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.nullanalysis.Nullsafe;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-frameworks/contract-spring/contract-spring-mvel/pom.xml b/contract-frameworks/contract-spring/contract-spring-mvel/pom.xml
index e2039d8..e76f4a7 100644
--- a/contract-frameworks/contract-spring/contract-spring-mvel/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-mvel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-mvel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/configuration/DefaultMVELConfiguration.java b/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/configuration/DefaultMVELConfiguration.java
index 5788541..1bd449c 100644
--- a/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/configuration/DefaultMVELConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/configuration/DefaultMVELConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.MvelConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/verifier/MvelConfiguration.java b/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/verifier/MvelConfiguration.java
index 1146c63..8561a18 100644
--- a/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/verifier/MvelConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-mvel/src/main/java/com/github/sebhoss/contract/verifier/MvelConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.verifier;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.warnings.CompilerWarnings;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-ognl/pom.xml b/contract-frameworks/contract-spring/contract-spring-ognl/pom.xml
index 554e681..a1ffa08 100644
--- a/contract-frameworks/contract-spring/contract-spring-ognl/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-ognl/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-ognl</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/configuration/DefaultOGNLConfiguration.java b/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/configuration/DefaultOGNLConfiguration.java
index 7683d60..750a865 100644
--- a/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/configuration/DefaultOGNLConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/configuration/DefaultOGNLConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.OgnlConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/verifier/OgnlConfiguration.java b/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/verifier/OgnlConfiguration.java
index 00dfddd..aff022c 100644
--- a/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/verifier/OgnlConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-ognl/src/main/java/com/github/sebhoss/contract/verifier/OgnlConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.verifier;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.warnings.CompilerWarnings;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-spel/pom.xml b/contract-frameworks/contract-spring/contract-spring-spel/pom.xml
index c8ae460..88731ea 100644
--- a/contract-frameworks/contract-spring/contract-spring-spel/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-spel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -37,4 +41,36 @@
       <artifactId>contract-spel</artifactId>
     </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/configuration/DefaultSpELConfiguration.java b/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/configuration/DefaultSpELConfiguration.java
index 24574bd..9bff203 100644
--- a/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/configuration/DefaultSpELConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/configuration/DefaultSpELConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.SpElConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/verifier/SpElConfiguration.java b/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/verifier/SpElConfiguration.java
index 398b7bf..46bfbd8 100644
--- a/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/verifier/SpElConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-spel/src/main/java/com/github/sebhoss/contract/verifier/SpElConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.verifier;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.warnings.CompilerWarnings;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-uel/pom.xml b/contract-frameworks/contract-spring/contract-spring-uel/pom.xml
index 4631d6a..7f3efa2 100644
--- a/contract-frameworks/contract-spring/contract-spring-uel/pom.xml
+++ b/contract-frameworks/contract-spring/contract-spring-uel/pom.xml
@@ -28,6 +28,10 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
+    <dependency>
+      <groupId>com.github.sebhoss.contract</groupId>
+      <artifactId>contract-verifier</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-spring-defaults</artifactId>
@@ -36,5 +40,45 @@
       <groupId>com.github.sebhoss.contract</groupId>
       <artifactId>contract-uel</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.glassfish</groupId>
+      <artifactId>javax.el</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.sebhoss</groupId>
+      <artifactId>null-analysis</artifactId>
+    </dependency>
   </dependencies>
+
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <usedDependencies>
+            <!--
+              Ignore common annotations because @SuppressWarnings is not retained
+              in byte code. There the plugin detects a false positive.
+             -->
+            <usedDependency>com.github.sebhoss:suppress-warnings</usedDependency>
+          </usedDependencies>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.ning.maven.plugins</groupId>
+        <artifactId>maven-duplicate-finder-plugin</artifactId>
+        <version>1.0.9</version>
+        <configuration>
+          <ignoredResources>
+            <ignoredResource>META-INF/beans.xml</ignoredResource>
+          </ignoredResources>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
\ No newline at end of file
diff --git a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/DefaultUELConfiguration.java b/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/DefaultUELConfiguration.java
index 049fe49..8deb80b 100644
--- a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/DefaultUELConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/DefaultUELConfiguration.java
@@ -6,6 +6,9 @@
  */
 package com.github.sebhoss.contract.configuration;
 
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
 import com.github.sebhoss.contract.verifier.UelConfiguration;
 
 /**
diff --git a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/package-info.java b/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/package-info.java
deleted file mode 100644
index 864613a..0000000
--- a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/configuration/package-info.java
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Copyright © 2012 Sebastian Hoß <mail@shoss.de>
- * This work is free. You can redistribute it and/or modify it under the
- * terms of the Do What The Fuck You Want To Public License, Version 2,
- * as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
- */
-/**
- * Default configurations for Spring-based projects.
- */
-package com.github.sebhoss.contract.configuration;
diff --git a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/verifier/UelConfiguration.java b/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/verifier/UelConfiguration.java
index b9556d6..c21761f 100644
--- a/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/verifier/UelConfiguration.java
+++ b/contract-frameworks/contract-spring/contract-spring-uel/src/main/java/com/github/sebhoss/contract/verifier/UelConfiguration.java
@@ -8,6 +8,9 @@
 
 import javax.el.ExpressionFactory;
 
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
 import com.github.sebhoss.nullanalysis.Nullsafe;
 import com.github.sebhoss.warnings.CompilerWarnings;
 
diff --git a/contract-frameworks/contract-spring/pom.xml b/contract-frameworks/contract-spring/pom.xml
index 81252a8..43766d7 100644
--- a/contract-frameworks/contract-spring/pom.xml
+++ b/contract-frameworks/contract-spring/pom.xml
@@ -43,18 +43,9 @@
   <!--                               DEPENDENCIES                              -->
   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
   <dependencies>
-    <dependency>
-      <groupId>com.github.sebhoss.contract</groupId>
-      <artifactId>contract-aspect</artifactId>
-    </dependency>
-
-    <dependency>
-      <groupId>org.springframework</groupId>
-      <artifactId>spring-aop</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
-      <artifactId>spring-aspects</artifactId>
+      <artifactId>spring-context</artifactId>
     </dependency>
   </dependencies>
 </project>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 0938b7a..99c70d3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -391,4 +391,39 @@
      -->
   </dependencies>
 
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <!--                                   BUILD                                 -->
+  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+  <build>
+    <plugins>
+      <plugin>
+    <groupId>org.codehaus.mojo</groupId>
+    <artifactId>cobertura-maven-plugin</artifactId>
+    <configuration>
+        <format>xml</format>
+        <maxmem>256m</maxmem>
+        <!-- aggregated reports for multi-module projects -->
+        <aggregate>true</aggregate>
+    </configuration>
+</plugin>
+      <plugin>
+        <groupId>com.versioneye</groupId>
+        <artifactId>versioneye-maven-plugin</artifactId>
+        <version>3.1.0</version>
+        <configuration>
+          <apiKey>${VERSION_EYE_KEY}</apiKey>
+          <updatePropertiesAfterCreate>false</updatePropertiesAfterCreate>
+          <projectId>54876dff03a57b9cf2009956</projectId>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.eluder.coveralls</groupId>
+        <artifactId>coveralls-maven-plugin</artifactId>
+        <version>3.0.1</version>
+        <configuration>
+          <repoToken>${COVERALLS_TOKEN}</repoToken>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>