diff --git a/.travis.yml b/.travis.yml
index 3d8e9c42412..0d178eaa525 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,13 +3,31 @@ sudo: false
 dist: trusty
 language: java
 jdk: oraclejdk8
-install: true # remove default
+addons:
+  postgresql: "9.3"   # min supported version
+cache:
+  directories:
+  - $HOME/.m2
+
+services:
+  - mysql
+
+install: true   # disable default because no need to do the mvn install before mvn verify
+
+before_script:
+  - psql -c "create user bitcoinj with password 'password';" -U postgres
+  - psql -c 'create database bitcoinj_test owner bitcoinj;' -U postgres
+  - mysql -e 'CREATE DATABASE bitcoinj_test;'
+  - mysql -e "grant all PRIVILEGES on bitcoinj_test.* to 'bitcoinj' identified by 'password';"
+  - mysql -e 'SET GLOBAL max_allowed_packet=20971520;'
+
 script:
-  - mvn -q clean install -Pno-network
-  - jdk_switcher use openjdk7
-  - cd core
-  - mvn -q clean package -Pno-network
+  - mvn verify -Ptravis -Dmaven.javadoc.skip=true
+# to run one specific test - in this case only testFirst100kBlocksWithCustomSchema test in PostgresFullPrunedBlockChainIT class
+#  - mvn clean verify -Ptravis -Dmaven.javadoc.skip=true -Dit.test=PostgresFullPrunedBlockChainIT#testFirst100kBlocksWithCustomSchema -Dtest=nothing -DfailIfNoTests=false
+# run only mysql integration tests
+#  - mvn clean verify -Ptravis -Dmaven.javadoc.skip=true -Dit.test=MySQLFullPrunedBlockChainIT -Dtest=nothing -DfailIfNoTests=false
 
 after_success:
-  - cd ../core
+  - cd core
   - mvn jacoco:report coveralls:report
diff --git a/core/pom.xml b/core/pom.xml
index c32ff64ac6d..6eae1201011 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -51,6 +51,27 @@
     </developers>
 
     <profiles>
+        <profile>
+            <id>dev</id> <!-- default profile -->
+            <activation>
+                <activeByDefault>true</activeByDefault>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-failsafe-plugin</artifactId>
+                        <configuration>
+                            <excludes>
+                                <!-- exclude postgres and mysql tests, these need environment setup -->
+                                <exclude>**/PostgresFullPrunedBlockChainIT.java</exclude>
+                                <exclude>**/MySQLFullPrunedBlockChainIT.java</exclude>
+                            </excludes>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
         <profile>
             <id>update-protobuf</id>
             <activation>
@@ -92,7 +113,7 @@
             </build>
         </profile>
         <profile>
-            <id>no-network</id>
+            <id>travis</id> <!-- profile for travis CI testing -->
             <build>
                 <plugins>
                     <plugin>
@@ -105,6 +126,10 @@
                             </excludes>
                         </configuration>
                     </plugin>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-failsafe-plugin</artifactId>
+                    </plugin>
                 </plugins>
             </build>
         </profile>
@@ -183,6 +208,8 @@
                                     <!-- classifier is "null" if not present -->
                                     <urns>
                                         <urn>cglib:cglib-nodep:2.2:jar:null:test:59afed7ab65e7ec6585d5bc60556c3cbd203532b</urn>
+                                        <urn>ch.qos.logback:logback-classic:1.2.3:jar:null:test:7c4f3c474fb2c041d8028740440937705ebb473a</urn>
+                                        <urn>ch.qos.logback:logback-core:1.2.3:jar:null:test:864344400c3d4d92dfeb0a305dc87d953677c03c</urn>
                                         <urn>com.fasterxml.jackson.core:jackson-annotations:2.5.0:jar:null:test:a2a55a3375bc1cef830ca426d68d2ea22961190e</urn>
                                         <urn>com.fasterxml.jackson.core:jackson-core:2.5.1:jar:null:test:e2a00ad1d7e540ec395e9296a34da484c8888d4d</urn>
                                         <urn>com.fasterxml.jackson.core:jackson-databind:2.5.2:jar:null:test:2b4dd13fbe6f8c6b146d4c3b7fd70862f136802d</urn>
@@ -275,12 +302,15 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.5.201505241946</version>
+                <version>0.7.9</version>
                 <configuration>
                     <excludes>
                         <exclude>**/Protos*.class</exclude> <!-- Exclude generated protobuf classes -->
+                        <exclude>**/ClientState*</exclude> <!-- also protobuf -->
+                        <exclude>**/ServerState*</exclude> <!-- also protobuf -->
                         <exclude>org/bitcoinj/jni/*</exclude> <!-- Exclude JNI classes -->
-                        <exclude>org/bitcoin/*</exclude> <!-- Exclude native classes -->
+                        <exclude>org/bitcoin/**/*</exclude> <!-- Exclude native classes -->
+                        <exclude>**/HttpDiscovery.class</exclude> <!-- not used in Bitcoin Cash -->
                     </excludes>
                 </configuration>
                 <executions>
@@ -290,24 +320,23 @@
                             <goal>prepare-agent</goal>
                         </goals>
                         <configuration>
-                            <destFile>${project.build.directory}/coverage-reports/jacoco.exec</destFile>
+                            <destFile>${project.build.directory}/jacoco.exec</destFile>
                             <propertyName>surefireArgLine</propertyName>
                         </configuration>
                     </execution>
                     <execution>
-                        <id>post-unit-test</id>
-                        <phase>test</phase>
+                        <id>pre-integration-test</id>
+                        <phase>pre-integration-test</phase>
                         <goals>
-                            <goal>report</goal>
+                            <goal>prepare-agent</goal>
                         </goals>
                         <configuration>
-                            <dataFile>${project.build.directory}/coverage-reports/jacoco.exec</dataFile>
-                            <outputDirectory>${project.reporting.outputDirectory}/jacoco</outputDirectory>
+                            <destFile>${project.build.directory}/jacoco.exec</destFile>
+                            <propertyName>failsafeArgLine</propertyName>
                         </configuration>
                     </execution>
                     <execution>
                         <id>default-report</id>
-                        <phase>prepare-package</phase>
                         <goals>
                             <goal>report</goal>
                         </goals>
@@ -315,22 +344,34 @@
                 </executions>
             </plugin>
 
-            <!-- Unit tests plugin, to skip runing test add -Dmaven.test.skip -->
+            <!-- Unit tests plugin, to skip running test add -Dmaven.test.skip -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
                 <configuration>
                     <argLine>-Xmx1024m ${surefireArgLine}</argLine><!-- Last argument is required for code coverage to work. -->
                     <runOrder>alphabetical</runOrder>
-                    <systemProperties>
-                        <property>
-                            <name>java.util.logging.config.file</name>
-                            <value>src/test/resources/logging.properties</value>
-                        </property>
-                    </systemProperties>
                 </configuration>
             </plugin>
 
+            <!-- integration tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <configuration>
+                    <runOrder>alphabetical</runOrder>
+                    <argLine>${failsafeArgLine}</argLine>
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+
             <!-- Coveralls is a online code coverage tool, you can track code coverage here: https://coveralls.io/r/bitcoinj/bitcoinj -->
             <plugin>
                 <groupId>org.eluder.coveralls</groupId>
@@ -341,39 +382,6 @@
     </build>
 
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.12</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.easymock</groupId>
-            <artifactId>easymock</artifactId>
-            <version>3.2</version>
-            <scope>test</scope>
-        </dependency>
-        <!-- bitcoinj consumers are expected to provide their own SLF4J adapters
-             such as logback, slf4j-log4j12, slf4j-jcl and so on
-             see http://www.slf4j.org/faq.html -->
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-jdk14</artifactId>
-            <version>1.7.20</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.5.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <version>1.3.167</version>
-            <optional>true</optional>
-        </dependency>
         <dependency>
             <groupId>com.madgag.spongycastle</groupId>
             <artifactId>core</artifactId>
@@ -404,17 +412,35 @@
             <artifactId>scrypt</artifactId>
             <version>1.4.0</version>
         </dependency>
-        <!-- Note this is an optional dependency: Postgres blockstore -->
-        <!-- To Test remove optional -->
         <dependency>
-          <groupId>postgresql</groupId>
-          <artifactId>postgresql</artifactId>
-          <version>9.1-901.jdbc4</version>
-          <optional>true</optional>
+            <groupId>org.bitcoinj</groupId>
+            <artifactId>orchid</artifactId>
+            <version>1.2.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.okhttp</groupId>
+            <artifactId>okhttp</artifactId>
+            <version>2.7.2</version>
+        </dependency>
+
+        <!-- optional dependencies -->
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>1.3.167</version>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <!-- Note this is an optional dependency: Postgres blockstore -->
+            <!-- To Test remove optional -->
+            <groupId>postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>9.1-901.jdbc4</version>
+            <optional>true</optional>
         </dependency>
-        <!-- Note this is an optional dependency: MySQL blockstore -->
-        <!-- To Test remove optional -->
         <dependency>
+            <!-- Note this is an optional dependency: MySQL blockstore -->
+            <!-- To Test remove optional -->
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.33</version>
@@ -426,16 +452,31 @@
             <version>1.8</version>
             <optional>true</optional>
         </dependency>
+
+        <!-- test dependencies -->
         <dependency>
-            <groupId>org.bitcoinj</groupId>
-            <artifactId>orchid</artifactId>
-            <version>1.2.1</version>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>com.squareup.okhttp</groupId>
-            <artifactId>okhttp</artifactId>
-            <version>2.7.2</version>
+            <groupId>org.easymock</groupId>
+            <artifactId>easymock</artifactId>
+            <version>3.2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.2.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.5.2</version>
+            <scope>test</scope>
         </dependency>
     </dependencies>
-
 </project>
diff --git a/core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainIT.java
similarity index 99%
rename from core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainIT.java
index aa93a1884b1..67105862616 100644
--- a/core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/AbstractFullPrunedBlockChainIT.java
@@ -46,11 +46,11 @@
  * We don't do any wallet tests here, we leave that to {@link ChainSplitTest}
  */
 
-public abstract class AbstractFullPrunedBlockChainTest {
+public abstract class AbstractFullPrunedBlockChainIT {
     @org.junit.Rule
     public ExpectedException thrown = ExpectedException.none();
 
-    private static final Logger log = LoggerFactory.getLogger(AbstractFullPrunedBlockChainTest.class);
+    private static final Logger log = LoggerFactory.getLogger(AbstractFullPrunedBlockChainIT.class);
 
     protected static final NetworkParameters PARAMS = new UnitTestParams() {
         @Override public int getInterval() {
diff --git a/core/src/test/java/org/bitcoinj/core/FullBlockTestGenerator.java b/core/src/test/java/org/bitcoinj/core/FullBlockTestGenerator.java
index 08481e13b5c..24d942ebc4f 100644
--- a/core/src/test/java/org/bitcoinj/core/FullBlockTestGenerator.java
+++ b/core/src/test/java/org/bitcoinj/core/FullBlockTestGenerator.java
@@ -139,7 +139,7 @@ public RuleList(List<Rule> list, Map<Sha256Hash, Block> hashHeaderMap, int maxim
 }
 
 public class FullBlockTestGenerator {
-    // Used by BitcoindComparisonTool and AbstractFullPrunedBlockChainTest to create test cases
+    // Used by BitcoindComparisonTool and AbstractFullPrunedBlockChainIT to create test cases
     private NetworkParameters params;
     private ECKey coinbaseOutKey;
     private byte[] coinbaseOutKeyPubKey;
diff --git a/core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainIT.java
similarity index 94%
rename from core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainIT.java
index 1c2301d03c5..c47a076b3a4 100644
--- a/core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/H2FullPrunedBlockChainIT.java
@@ -24,7 +24,7 @@
 /**
  * An H2 implementation of the FullPrunedBlockStoreTest
  */
-public class H2FullPrunedBlockChainTest extends AbstractFullPrunedBlockChainTest {
+public class H2FullPrunedBlockChainIT extends AbstractFullPrunedBlockChainIT {
     @After
     public void tearDown() throws Exception {
         deleteFiles();
diff --git a/core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainIT.java
similarity index 94%
rename from core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainIT.java
index 12c2788d63c..32876cb91db 100644
--- a/core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/LevelDBFullPrunedBlockChainIT.java
@@ -26,8 +26,8 @@
 /**
  * An H2 implementation of the FullPrunedBlockStoreTest
  */
-public class LevelDBFullPrunedBlockChainTest extends
-        AbstractFullPrunedBlockChainTest {
+public class LevelDBFullPrunedBlockChainIT extends
+        AbstractFullPrunedBlockChainIT {
     @After
     public void tearDown() throws Exception {
         deleteFiles();
diff --git a/core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainIT.java
similarity index 93%
rename from core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainIT.java
index 68f3d55c313..7d9825a9052 100644
--- a/core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/MemoryFullPrunedBlockChainIT.java
@@ -21,7 +21,7 @@
 /**
  * A MemoryStore implementation of the FullPrunedBlockStoreTest
  */
-public class MemoryFullPrunedBlockChainTest extends AbstractFullPrunedBlockChainTest
+public class MemoryFullPrunedBlockChainIT extends AbstractFullPrunedBlockChainIT
 {
     @Override
     public FullPrunedBlockStore createStore(NetworkParameters params, int blockCount) throws BlockStoreException
diff --git a/core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainIT.java
similarity index 81%
rename from core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainIT.java
index e26ddcb14b5..2eaab30170f 100644
--- a/core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/MySQLFullPrunedBlockChainIT.java
@@ -21,12 +21,12 @@
 import org.bitcoinj.store.MySQLFullPrunedBlockStore;
 import org.junit.After;
 import org.junit.Ignore;
+import org.junit.Test;
 
 /**
- * A MySQL implementation of the {@link AbstractFullPrunedBlockChainTest}
+ * A MySQL implementation of the {@link AbstractFullPrunedBlockChainIT}
  */
-@Ignore("enable the mysql driver dependency in the maven POM")
-public class MySQLFullPrunedBlockChainTest extends AbstractFullPrunedBlockChainTest {
+public class MySQLFullPrunedBlockChainIT extends AbstractFullPrunedBlockChainIT {
 
     @After
     public void tearDown() throws Exception {
@@ -49,4 +49,11 @@ public FullPrunedBlockStore createStore(NetworkParameters params, int blockCount
     public void resetStore(FullPrunedBlockStore store) throws BlockStoreException {
         ((MySQLFullPrunedBlockStore)store).resetStore();
     }
+
+    @Override
+    @Test
+    @Ignore("causes error on travis MySQL - redo log not big enough")
+    // The size of BLOB/TEXT data inserted in one transaction is greater than 10% of redo log size. Increase the redo log size using innodb_log_file_size.
+    public void testGeneratedChain() {
+    }
 }
\ No newline at end of file
diff --git a/core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainTest.java b/core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainIT.java
similarity index 93%
rename from core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainTest.java
rename to core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainIT.java
index 57b448b9d17..d0d848df745 100644
--- a/core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainTest.java
+++ b/core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainIT.java
@@ -22,10 +22,9 @@
 import org.junit.Test;
 
 /**
- * A Postgres implementation of the {@link AbstractFullPrunedBlockChainTest}
+ * A Postgres implementation of the {@link AbstractFullPrunedBlockChainIT}
  */
-@Ignore("enable the postgres driver dependency in the maven POM")
-public class PostgresFullPrunedBlockChainTest extends AbstractFullPrunedBlockChainTest
+public class PostgresFullPrunedBlockChainIT extends AbstractFullPrunedBlockChainIT
 {
     // Replace these with your postgres location/credentials and remove @Ignore to test
     // You can set up a fresh postgres with the command: create user bitcoinj superuser password 'password';
diff --git a/core/src/test/resources/logback-test.xml b/core/src/test/resources/logback-test.xml
new file mode 100644
index 00000000000..e136e9cc372
--- /dev/null
+++ b/core/src/test/resources/logback-test.xml
@@ -0,0 +1,18 @@
+<configuration debug="false">
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <!--
+        turn logs off by default for tests
+        to debug tests you might need to increase this, but be aware that a lot of logs are produced
+        including intentional warnings and errors
+    -->
+    <root level="OFF">
+        <appender-ref ref="STDOUT" />
+    </root>
+
+</configuration>
\ No newline at end of file
diff --git a/core/src/test/resources/logging.properties b/core/src/test/resources/logging.properties
deleted file mode 100644
index 0aa499fae1d..00000000000
--- a/core/src/test/resources/logging.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-handlers=java.util.logging.ConsoleHandler
-org.bitcoinj.level=OFF
\ No newline at end of file
diff --git a/docs/designdocs/MavenBuildProcess.md b/docs/designdocs/MavenBuildProcess.md
new file mode 100644
index 00000000000..7e0c045fce8
--- /dev/null
+++ b/docs/designdocs/MavenBuildProcess.md
@@ -0,0 +1,57 @@
+# Maven Build Process
+
+* to run unit tests - `mvn clean test`
+* to run unit tests & integration tests - `mvn clean verify`
+
+Coverage reports are produced for bitcoincashj-core by the integration tests and are available 
+at `core/target/site/jacoco/index.html`.
+
+## Profiles
+The default profile is the `dev` profile. This profile will exclude Integration tests that have
+external dependencies (e.g. Postgresql, MySQL).
+
+The `travis` profile is used for travis-ci.org. This profile will include all Integration tests.
+
+## MySQL Integration Tests
+To run the MySQL Integration tests locally, you will need a standard MySQL installation. The following SQL commands create a database and user account:
+```
+CREATE DATABASE bitcoinj_test;
+GRANT ALL PRIVILEGES ON bitcoinj_test.* TO 'bitcoinj' IDENTIFIED BY 'password';
+SET GLOBAL max_allowed_packet=20971520;
+```
+
+Notes:
+* the maximum allowed packet size must be at least 20MB. The command above will set this properly until the next MySQL restart
+* this is not a secure configuration, only expose the MySQL on localhost and delete the user and database when no longer needed
+
+## PostgreSQL Integration Tests
+To run the PostgreSQL integration tests locally, you will need a standard PostgreSQL installation, version 9.3 or higher. The following SQL commands
+create a database and user account for the tests:
+```
+create user bitcoinj with password 'password';
+create database bitcoinj_test owner bitcoinj;
+```
+
+Notes:
+* this is not a secure configuration, only expose the PostgreSQL on localhost and delete the user and database when no longer needed
+
+## Process Design Goals
+
+* follow Maven philosophy & be as standard as possible
+* devs can immediately get started with defaults
+* separate unit and integration tests
+* travis-ci.org support
+* coveralls.io support
+
+Unit tests must not have external dependencies and must be fast. Developers must be
+able to execute these tests frequently without disrupting flow of work. Unit tests
+which take too much time should be moved to the integration test set.
+
+Integration tests are divided into a number of groups. Tests in the base group must 
+have no external dependencies except disk, io, memory, network. Tests which have other
+external dependencies (e.g. Postgres, MySQL) must be grouped according to the
+dependency. By default, only the tests from the base group are performed. 
+The tests from all groups must be performed by Travis. 
+
+Coverage reports must be produced for bitcoincashj-core by the Integration tests. Travis must 
+upload these to coveralls.io.
diff --git a/pom.xml b/pom.xml
index f206d53acd0..1061e63d7ec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,266 +1,270 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+    <modelVersion>4.0.0</modelVersion>
 
-  <groupId>cash.bitcoinj</groupId>
-  <artifactId>bitcoinj-parent</artifactId>
-  <version>0.15-SNAPSHOT</version>
-  <packaging>pom</packaging>
+    <groupId>cash.bitcoinj</groupId>
+    <artifactId>bitcoinj-parent</artifactId>
+    <version>0.15-SNAPSHOT</version>
+    <packaging>pom</packaging>
 
-  <modules>
-    <module>core</module>
-    <module>examples</module>
-    <module>tools</module>
-    <module>wallettemplate</module>
-  </modules>
+    <modules>
+        <module>core</module>
+        <module>examples</module>
+        <module>tools</module>
+        <module>wallettemplate</module>
+    </modules>
 
-  <parent>
-    <groupId>org.sonatype.oss</groupId>
-    <artifactId>oss-parent</artifactId>
-    <version>7</version>
-  </parent>
+    <parent>
+        <groupId>org.sonatype.oss</groupId>
+        <artifactId>oss-parent</artifactId>
+        <version>7</version>
+    </parent>
 
-  <scm>
-    <connection>scm:git:https://github.com/bitcoinj-cash/bitcoinj</connection>
-    <developerConnection>scm:https://github.com/bitcoinj-cash/bitcoinj</developerConnection>
-    <url>scm:git:https://github.com/bitcoinj-cash/bitcoinj</url>
-  </scm>
+    <scm>
+        <connection>scm:git:https://github.com/bitcoinj-cash/bitcoinj</connection>
+        <developerConnection>scm:https://github.com/bitcoinj-cash/bitcoinj</developerConnection>
+        <url>scm:git:https://github.com/bitcoinj-cash/bitcoinj</url>
+    </scm>
 
-  <name>bitcoinj Parent</name>
-  <description>Provides the common configuration for the BitCoinJ modules</description>
-  <url>http://bitcoinj.cash/</url>
+    <name>bitcoinj Parent</name>
+    <description>Provides the common configuration for the BitCoinJ modules</description>
+    <url>http://bitcoinj.cash/</url>
 
-  <licenses>
-    <license>
-      <name>Apache 2</name>
-      <url>http://www.apache.org/licenses/LICENSE-2.0</url>
-      <distribution>repo</distribution>
-      <comments>A business-friendly OSS license</comments>
-    </license>
-  </licenses>
+    <licenses>
+        <license>
+            <name>Apache 2</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0</url>
+            <distribution>repo</distribution>
+            <comments>A business-friendly OSS license</comments>
+        </license>
+    </licenses>
 
-  <issueManagement>
-    <system>GitHub</system>
-    <url>https://github.com/bitcoinj-cash/bitcoinj/issues</url>
-  </issueManagement>
+    <issueManagement>
+        <system>GitHub</system>
+        <url>https://github.com/bitcoinj-cash/bitcoinj/issues</url>
+    </issueManagement>
 
-  <mailingLists>
-    <mailingList>
-      <name>bitcoinj.cash Google Group</name>
-      <post>https://groups.google.com/forum/#!forum/bitcoinj-cash</post>
-    </mailingList>
-  </mailingLists>
+    <mailingLists>
+        <mailingList>
+            <name>bitcoinj.cash Google Group</name>
+            <post>https://groups.google.com/forum/#!forum/bitcoinj-cash</post>
+        </mailingList>
+    </mailingLists>
 
-  <distributionManagement>
-    <snapshotRepository>
-      <id>ossrh</id>
-      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-    </snapshotRepository>
-    <repository>
-      <id>ossrh</id>
-      <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
-    </repository>
-  </distributionManagement>
+    <prerequisites>
+        <maven>3.0.4</maven>
+    </prerequisites>
 
-  <!-- Common build plugin configuration -->
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-          <showDeprecation>true</showDeprecation>
-          <showWarnings>true</showWarnings>
-        </configuration>
-      </plugin>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <generated.sourceDirectory>gen</generated.sourceDirectory>
+        <slf4j.version>1.7.25</slf4j.version>
+    </properties>
 
-      <plugin>
-        <artifactId>maven-jar-plugin</artifactId>
-        <configuration>
-          <archive>
-            <addMavenDescriptor>false</addMavenDescriptor>
-          </archive>
-        </configuration>
-      </plugin>
 
-      <plugin>
-        <artifactId>maven-javadoc-plugin</artifactId>
-        <configuration>
-          <notimestamp>true</notimestamp>
-        </configuration>
-      </plugin>
+    <distributionManagement>
+        <snapshotRepository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </snapshotRepository>
+        <repository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+        </repository>
+    </distributionManagement>
 
-      <plugin>
-        <groupId>org.sonatype.plugins</groupId>
-        <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.5</version>
-        <extensions>true</extensions>
-        <configuration>
-            <serverId>ossrh</serverId>
-            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-            <autoReleaseAfterClose>false</autoReleaseAfterClose>
-        </configuration>
-      </plugin>
-    </plugins>
-    <pluginManagement>
-      <plugins>
-        <plugin>
-          <artifactId>maven-clean-plugin</artifactId>
-          <version>2.6.1</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.2</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-dependency-plugin</artifactId>
-          <version>2.10</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-deploy-plugin</artifactId>
-          <version>2.8.2</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-enforcer-plugin</artifactId>
-          <version>1.4</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-install-plugin</artifactId>
-          <version>2.5.2</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-jar-plugin</artifactId>
-          <version>2.6</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-javadoc-plugin</artifactId>
-          <version>2.10.2</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-resources-plugin</artifactId>
-          <version>2.7</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-shade-plugin</artifactId>
-          <version>2.3</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-site-plugin</artifactId>
-          <version>3.4</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-source-plugin</artifactId>
-          <version>2.4</version>
-        </plugin>
-        <plugin>
-          <groupId>org.codehaus.mojo</groupId>
-          <artifactId>cobertura-maven-plugin</artifactId>
-          <version>2.7</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.19.1</version>
-        </plugin>
-      </plugins>
-    </pluginManagement>
-  </build>
-
-  <dependencies>
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-api</artifactId>
-        <version>1.7.20</version>
-      </dependency>
-      <!-- bitcoinj consumers are expected to provide their own SLF4J adapters
-    such as logback, slf4j-log4j12, slf4j-jcl and so on
-    see http://www.slf4j.org/faq.html -->
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-jdk14</artifactId>
-        <version>1.7.20</version>
-        <scope>runtime</scope>
-        <optional>true</optional>
-      </dependency>
-  </dependencies>
+    <!-- Common build plugin configuration -->
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <showDeprecation>true</showDeprecation>
+                    <showWarnings>true</showWarnings>
+                </configuration>
+            </plugin>
 
-  <prerequisites>
-      <maven>3.0.4</maven>
-  </prerequisites>
+            <plugin>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <addMavenDescriptor>false</addMavenDescriptor>
+                    </archive>
+                </configuration>
+            </plugin>
 
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <generated.sourceDirectory>gen</generated.sourceDirectory>
-  </properties>
+            <plugin>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <configuration>
+                    <notimestamp>true</notimestamp>
+                </configuration>
+            </plugin>
 
-  <profiles>
-    <profile>
-      <id>doclint-java8-disable</id>
-      <activation>
-        <jdk>[1.8,)</jdk>
-      </activation>
-      <build>
-        <plugins>
-          <plugin>
-            <groupId>org.apache.maven.plugins</groupId>
-            <artifactId>maven-javadoc-plugin</artifactId>
-            <configuration>
-              <additionalparam>-Xdoclint:none</additionalparam>
-            </configuration>
-          </plugin>
+            <plugin>
+                <groupId>org.sonatype.plugins</groupId>
+                <artifactId>nexus-staging-maven-plugin</artifactId>
+                <version>1.6.5</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <serverId>ossrh</serverId>
+                    <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+                    <autoReleaseAfterClose>false</autoReleaseAfterClose>
+                </configuration>
+            </plugin>
         </plugins>
-      </build>
-    </profile>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <artifactId>maven-clean-plugin</artifactId>
+                    <version>2.6.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>3.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-dependency-plugin</artifactId>
+                    <version>2.10</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-deploy-plugin</artifactId>
+                    <version>2.8.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-enforcer-plugin</artifactId>
+                    <version>1.4</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-install-plugin</artifactId>
+                    <version>2.5.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-jar-plugin</artifactId>
+                    <version>2.6</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-javadoc-plugin</artifactId>
+                    <version>2.10.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-resources-plugin</artifactId>
+                    <version>2.7</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-shade-plugin</artifactId>
+                    <version>2.3</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>3.4</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-source-plugin</artifactId>
+                    <version>2.4</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.codehaus.mojo</groupId>
+                    <artifactId>cobertura-maven-plugin</artifactId>
+                    <version>2.7</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>2.20.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-failsafe-plugin</artifactId>
+                    <version>2.20.1</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.slf4j</groupId>
+                <artifactId>slf4j-api</artifactId>
+                <version>${slf4j.version}</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <!-- common dependencies -->
+    <dependencies>
+        <!-- bitcoinj consumers are expected to provide their own SLF4J adapters
+        such as logback, slf4j-log4j12, slf4j-jcl and so on
+        see http://www.slf4j.org/faq.html -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+    </dependencies>
+
+    <profiles>
+        <profile>
+            <!-- default profile -->
+            <id>dev</id>
+            <activation>
+                <activeByDefault>true</activeByDefault>
+            </activation>
+        </profile>
+
+        <profile>
+            <!-- profile used for travis testing - excludes tests that need external network -->
+            <id>travis</id>
+        </profile>
 
-      <profile>
-          <id>release</id>
-          <build>
-              <plugins>
-                  <plugin>
-                      <groupId>org.apache.maven.plugins</groupId>
-                      <artifactId>maven-source-plugin</artifactId>
-                      <executions>
-                          <execution>
-                              <id>attach-sources</id>
-                              <phase>verify</phase>
-                              <goals>
-                                  <goal>jar-no-fork</goal>
-                              </goals>
-                          </execution>
-                      </executions>
-                  </plugin>
+        <profile>
+            <id>release</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-source-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>attach-sources</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>jar-no-fork</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
 
-                  <plugin>
-                      <groupId>org.apache.maven.plugins</groupId>
-                      <artifactId>maven-javadoc-plugin</artifactId>
-                      <executions>
-                          <execution>
-                              <id>attach-javadocs</id>
-                              <goals>
-                                  <goal>jar</goal>
-                              </goals>
-                          </execution>
-                      </executions>
-                  </plugin>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-javadoc-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>attach-javadocs</id>
+                                <goals>
+                                    <goal>jar</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
 
-                  <plugin>
-                      <groupId>org.apache.maven.plugins</groupId>
-                      <artifactId>maven-gpg-plugin</artifactId>
-                      <version>1.5</version>
-                      <executions>
-                          <execution>
-                              <id>sign-artifacts</id>
-                              <phase>verify</phase>
-                              <goals>
-                                  <goal>sign</goal>
-                              </goals>
-                          </execution>
-                      </executions>
-                  </plugin>
-              </plugins>
-          </build>
-      </profile>
-  </profiles>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-gpg-plugin</artifactId>
+                        <version>1.5</version>
+                        <executions>
+                            <execution>
+                                <id>sign-artifacts</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>sign</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 
 </project>