diff --git a/core/src/test/java/com/github/dbunit/rules/DataSetExecutorIt.java b/core/src/test/java/com/github/dbunit/rules/DataSetExecutorIt.java
index c0df891..bc73249 100644
--- a/core/src/test/java/com/github/dbunit/rules/DataSetExecutorIt.java
+++ b/core/src/test/java/com/github/dbunit/rules/DataSetExecutorIt.java
@@ -139,4 +139,27 @@ public void shouldLoadUsersFromXmlDataset() {
         assertThat(user.getFollowers()).contains(expectedFollower);
     }
 
+
+    @Test
+    public void shouldNotCreateDataSetWithoutConnection(){
+        DataSetExecutorImpl executor = DataSetExecutorImpl.instance(new ConnectionHolderImpl(null));
+        try{
+            executor.createDataSet(new DataSetConfig("test-dataset"));
+        }catch (DataBaseSeedingException e){
+            assertThat(e.getMessage()).isEqualTo("Could not initialize dataset: test-dataset");
+        }
+
+    }
+
+    @Test
+    public void shouldNotCreateExecutiorWithoutConnection(){
+        try{
+            DataSetExecutorImpl executor = DataSetExecutorImpl.instance(null);
+        }catch (RuntimeException e){
+            assertThat(e.getMessage()).isEqualTo("Invalid connection");
+        }
+
+    }
+
+
 }
diff --git a/pom.xml b/pom.xml
index 3017332..e2db733 100644
--- a/pom.xml
+++ b/pom.xml
@@ -215,12 +215,15 @@
                         <artifactId>jacoco-maven-plugin</artifactId>
                         <version>${jacoco.version}</version>
                         <configuration>
+                            <!-- basically excludes classes from examples projects-->
                             <excludes>
                                 <exclude>**/*Repository.*</exclude>
                                 <exclude>**/Q*</exclude>
                                 <exclude>**/*Service.*</exclude>
                                 <exclude>**/*User.*</exclude>
                                 <exclude>**/*UserRepository.*</exclude>
+                                <exclude>**/*UserController.*</exclude>
+                                <exclude>**/*Application.*</exclude>
                                 <exclude>**/*UserRepositoryTest.*</exclude>
                                 <exclude>**/*Contact*</exclude>
                                 <exclude>**/*Company*</exclude>