Unit Test: Added Semantic Version Test (Current version agains v2.1.5)

TestVersionSemantics adds testing of semantic versioning
of 2.1.5 gluegen-rt.jar against the current version within a unit test.

Currently we expect BACKWARD_COMPATIBLE_USER
and need to toggle this to NON_BACKWARD_COMPATIBLE,
if actually perfoming non compatible major or minor version changes.

The latter is allowed right now, since we increment from 2.1 -> 2.2!

- Added https://github.com/jeluard/semantic-versioning semver.jar (Apache License Version 2.0)

11 files changed, 690 insertions, 6 deletions

diff --git a/.classpath b/.classpath
index 4d57d71..bf36344 100644
--- a/.classpath
+++ b/.classpath
@@ -26,5 +26,6 @@
 	<classpathentry kind="lib" path="make/lib/antlr.jar"/>
 	<classpathentry kind="lib" path="make/lib/android-sdk/15/android.jar" sourcepath="make/lib/android-sdk/15/android-java-src.zip"/>
 	<classpathentry kind="lib" path="make/lib/junit.jar" sourcepath="make/lib/junit-sources.jar"/>
+	<classpathentry kind="lib" path="make/lib/semantic-versioning/semver.jar" sourcepath="make/lib/semantic-versioning/semver-src.zip"/>
 	<classpathentry kind="output" path="build/eclipse-classes"/>
 </classpath>
diff --git a/make/build-test.xml b/make/build-test.xml
index 2bf2e37..a4ebdb3 100644
--- a/make/build-test.xml
+++ b/make/build-test.xml
@@ -75,18 +75,20 @@
 
         <path id="junit.compile.classpath">
             <pathelement location="${junit.jar}" />
+            <pathelement location="${semver.jar}" />
             <pathelement location="${gluegen.jar}" />
         </path>
 
         <path id="junit.run.classpath">
             <pathelement location="${junit.jar}" />
+            <pathelement location="${semver.jar}" />
             <pathelement location="${TestJarsInJar.jar}" />
             <pathelement location="${gluegen-rt.jar}" />
             <pathelement location="${gluegen.jar}" />
             <pathelement location="${gluegen-test.jar}" />
         </path>
-        <property name="junit.run.jars" value="${junit.jar}${path.separator}${ant.jar}${path.separator}${TestJarsInJar.jar}${path.separator}${gluegen.root}/${rootrel.build}/gluegen-rt.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen.jar${path.separator}${build_t}/gluegen-test.jar"/>
-        <property name="junit.run.remote.jars" value="${junit.jar}${path.separator}${env.TARGET_ANT_HOME}/lib/ant.jar${path.separator}${env.TARGET_ANT_HOME}/lib/ant-junit.jar${path.separator}${env.TARGET_ANT_HOME}/lib/ant-junit4.jar${path.separator}${gluegen.root}/make/lib/TestJarsInJar.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen-rt.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen.jar${path.separator}${build_t}/gluegen-test.jar"/>
+        <property name="junit.run.jars" value="${junit.jar}${path.separator}${ant.jar}${path.separator}${semver.jar}${path.separator}${TestJarsInJar.jar}${path.separator}${gluegen.root}/${rootrel.build}/gluegen-rt.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen.jar${path.separator}${build_t}/gluegen-test.jar"/>
+        <property name="junit.run.remote.jars" value="${junit.jar}${path.separator}${env.TARGET_ANT_HOME}/lib/ant.jar${path.separator}${env.TARGET_ANT_HOME}/lib/ant-junit.jar${path.separator}${env.TARGET_ANT_HOME}/lib/ant-junit4.jar${path.separator}${env.TARGET_ANT_HOME}/lib/semantic-versioning/semver.jar${path.separator}${gluegen.root}/make/lib/TestJarsInJar.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen-rt.jar${path.separator}${gluegen.root}/${rootrel.build}/gluegen.jar${path.separator}${build_t}/gluegen-test.jar"/>
         <property name="junit.run.remote.apks" value="${gluegen.root}/${rootrel.build}/jogamp-android-launcher.apk${path.separator}${ant-junit-all.apk}${path.separator}${gluegen.root}/${rootrel.build}/gluegen-rt-android-${android.abi}.apk${path.separator}${build_t}/gluegen-test.apk${path.separator}${gluegen.root}/make/lib/TestJarsInJar.apk"/>
 
         <property name="stub.includes.dir" value="stub_includes" /> <!-- NOTE:  this MUST be relative for FileSet -->
diff --git a/make/gluegen-properties.xml b/make/gluegen-properties.xml
index b9411cc..7e51e0a 100755
--- a/make/gluegen-properties.xml
+++ b/make/gluegen-properties.xml
@@ -54,6 +54,7 @@
     <property name="ant.jar"       value="${ant.home}/lib/ant.jar" />
     <property name="ant-junit.jar" value="${ant.home}/lib/ant-junit.jar" />
     <property name="ant-junit4.jar" value="${ant.home}/lib/ant-junit4.jar" />
+    <property name="semver.jar" value="${gluegen.root}/make/lib/semantic-versioning/semver.jar" />
 
     <property name="android.version" value="9" /> <!-- default - if not set by jogamp-env.xml:jogamp.env.init -->
     <property name="android-min.jar" value="${gluegen.root}/make/lib/android-sdk/${android.version}/android.jar" />
diff --git a/make/lib/semantic-versioning/LICENSE b/make/lib/semantic-versioning/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/make/lib/semantic-versioning/LICENSE
@@ -0,0 +1,202 @@
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diff --git a/make/lib/semantic-versioning/README.md b/make/lib/semantic-versioning/README.md
new file mode 100644
index 0000000..c786653
--- /dev/null
+++ b/make/lib/semantic-versioning/README.md
@@ -0,0 +1,319 @@
+![CI status](https://secure.travis-ci.org/jeluard/semantic-versioning.png)
+
+Version number changes implications are not always clearly identified. Can I be sure this new minor version didn't break the public API? 
+As a library writer, how to continuously validate I don't break binary compatibility?
+
+`semantic-versioning` is a Java library allowing to validate (using bytecode inspection) if library version numbers follows Semantic Versioning principles as defined by [Semantic Versioning](http://semver.org).
+It can check JAR files or classes to identify changes between versions and validate if the new version number is correct according to semver.
+
+`semantic-versioning` is available as an [API](#api), a [command line tool](#cli) and a [maven enforcer](http://maven.apache.org/enforcer/maven-enforcer-plugin/) [rule](#rule).
+
+<a name="api"></a>
+## API overview
+
+Semantic Versioning also provides an API for programmatically validating your project's version number.
+
+```java
+final File previousJar = ...;
+final File currentJar = ...;
+        
+final Comparer comparer = new Comparer(previousJar, currentJar, ..., ...);
+final Delta delta = comparer.diff();
+
+final String compatibilityType = ...;
+
+//Validates that computed and provided compatibility type are compatible.
+final Delta.CompatibilityType expectedCompatibilityType = Delta.CompatibilityType.valueOf(compatibilityType);
+final Delta.CompatibilityType detectedCompatibilityType = delta.computeCompatibilityType();
+if (detectedCompatibilityType.compareTo(expectedCompatibilityType) > 0) {
+  //Not compatible.
+}
+
+//Provide version number for previous and current Jar files.
+final Version previous = Version.parse(...);
+final Version current = Version.parse(...);
+
+//Validates that current version number is valid based on semantic versioning principles.
+final boolean compatible = delta.validate(previous, current);
+```
+
+<a name="cli"></a>
+## CLI
+
+This simple command line tool looks at Java JAR files and determine API changes.
+
+### Built-in help
+
+```
+% java -jar semver.jar --help
+Semantic Version validator.
+
+Usage: semver [options]
+
+Options:
+  --base-jar JAR          The base jar.
+  --base-version VERSION  Version of the base jar (given with --base-jar).
+  --check,-c              Check the compatibility of two jars.
+  --diff,-d               Show the differences between two jars.
+  --excludes EXCLUDE;...  Semicolon separated list of full qualified class names
+						  or partly qualified class names with wild cards
+                          to be excluded.
+  --help,-h               Show this help and exit.
+  --includes INCLUDE;...  Semicolon separated list of full qualified class names
+						  or partly qualified class names with wild cards
+                          to be included.
+  --infer,-i              Infer the version of the new jar based on the previous
+                          jar.
+  --new-jar JAR           The new jar.
+  --new-version VERSION   Version of the new jar (given with --new-jar).
+  --validate,-v           Validate that the versions of two jars fulfil the
+                          semver specification.
+```
+
+### Diff
+
+Dump all changes between two JARs on standard output.
+
+```
+% java -jar semver.jar --diff --base-jar previousJar --new-jar current.jar
+Class org.project.MyClass
+ Added Class 
+Class org.project.MyClass2
+ Added Method method1
+ Removed Field field1
+ Changed Field field2 removed: final
+```
+
+### Excludes / Includes
+
+In- or exclude classes for the validation by specifying a fully qualified 
+class name or using wild cards. There are two wild cards: `*` and `**`.
+`*` is a wild card for an arbitrary number of characters but at most one 
+folder hierarchy. 
+`**` is a wild card for an arbitrary number of characters and an arbitrary 
+number of folder hierarchies. 
+
+```
+% java -jar semver.jar --excludes **/MyClass; org/**/MyClass; org/**/*Class;
+```
+
+### Check
+
+Check compatibility type between two JARs.
+
+```
+% java -jar semver.jar --check --base-jar previousJar --new-jar current.jar
+BACKWARD_COMPATIBLE_IMPLEMENTER
+```
+
+### Infer
+
+Infer JAR version based on a previously versioned JAR.
+
+```
+% java -jar semver.jar --infer --base-version 1.0.0 --base-jar previous.jar --new-jar current.jar
+1.0.1
+```
+
+### Validate
+
+Validate JAR version based on a previously versioned JAR.
+
+```
+% java -jar semver.jar --validate --base-version 1.0.0 --base-jar previous.jar --new-version 1.0.1 --new-jar current.jar
+true
+```
+
+<a name="rule"></a>
+## Maven Enforcer Rule
+
+The enforcer rule offers a rule for checking project's version against a previously released artifact.
+
+### Checking a project's compatibility
+
+In order to check your project's compatibility, you must add the enforcer rule as a dependency to
+the maven-enforcer-plugin and then configure the maven-enforcer-plugin to run the rule:
+
+```xml
+<project>
+  ...
+  <build>
+    ...
+    <plugins>
+      ...
+      <plugin>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>1.0.1</version>
+        ...
+        <dependencies>
+            ...
+            <dependency>
+                <groupId>org.semver</groupId>
+                <artifactId>enforcer-rule</artifactId>
+                <version>0.9.23</version>
+            </dependency>
+            ...
+        </dependencies>
+        ...
+        <executions>
+           ....
+          <execution>
+            <id>check</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>enforce</goal>
+            </goals>
+            <configuration>
+              <rules>
+                <requireBackwardCompatibility implementation="org.semver.enforcer.RequireBackwardCompatibility">
+                  <compatibilityType>BACKWARD_COMPATIBLE_IMPLEMENTER</compatibilityType>
+                </requireBackwardCompatibility>
+              </rules>
+            </configuration>
+          </execution>
+          ...
+        </executions>
+        ...
+      </plugin>
+      ...
+    </plugins>
+    ...
+  </build>
+  ...
+</project>
+```
+
+Once you have configured your project, maven-enforcer will be able to throw a build error if current version is not backward compatible with last released one. 
+
+You can force strict checking (i.e. compatibility type must exactly match specified one):
+
+```xml
+<configuration>
+  <rules>
+    <requireBackwardCompatibility implementation="org.semver.enforcer.RequireBackwardCompatibility">
+      ...
+      <strictChecking>true</strictChecking>
+      ...
+    </requireBackwardCompatibility>
+  </rules>
+</configuration>
+```
+
+### Checking a project's version
+
+In order to check your project's version, you must add the enforcer rule as a dependency to
+the maven-enforcer-plugin and then configure the maven-enforcer-plugin to run the rule:
+
+```xml
+<project>
+  ...
+  <build>
+    ...
+    <plugins>
+      ...
+      <plugin>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>1.0.1</version>
+        ...
+        <dependencies>
+            ...
+            <dependency>
+                <groupId>org.semver</groupId>
+                <artifactId>enforcer-rule</artifactId>
+                <version>0.9.23</version>
+            </dependency>
+            ...
+        </dependencies>
+        ...
+        <executions>
+           ....
+          <execution>
+            <id>check</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>enforce</goal>
+            </goals>
+            <configuration>
+              <rules>
+                <requireSemanticVersioningConformance implementation="org.semver.enforcer.RequireSemanticVersioningConformance" />
+              </rules>
+            </configuration>
+          </execution>
+          ...
+        </executions>
+        ...
+      </plugin>
+      ...
+    </plugins>
+    ...
+  </build>
+  ...
+</project>
+```
+
+Once you have configured your project, maven-enforcer will be able to throw a build error if current version follows semantic versioning principles. 
+
+## Dumping details
+
+Dump details of detected changes:
+
+```xml
+<configuration>
+  <rules>
+    <require...>
+      ...
+      <dumpDetails>true</dumpDetails>
+      ...
+    </require...>
+  </rules>
+</configuration>
+```
+
+### Checking against a well known version
+
+You can force check with a well known version:
+
+```xml
+<configuration>
+  <rules>
+    <require...>
+      ...
+      <previousVersion>1.0.0</previousVersion>
+      ...
+    </require...>
+  </rules>
+</configuration>
+```
+
+### Filtering
+
+Both rules allow to filter classes/packages:
+
+```xml
+<require...>
+  ...
+  <includes>
+    <include>org.project.MyClass</include>
+    <include>org.project.internal</include>
+  </includes>
+  <excludes>
+    <exclude>org.project.MyClass</exclude>
+    <exclude>org.project.internal</exclude>
+  </excludes>
+  ...
+</require...>
+```
+
+## Maven dependency
+
+```xml
+<dependency>
+    <groupId>org.semver</groupId>
+    <artifactId>enforcer-rule</artifactId>
+    <version>0.9.23</version>
+</dependency>
+```
+
+## License
+
+Released under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0.html).
diff --git a/make/lib/semantic-versioning/VERSION b/make/lib/semantic-versioning/VERSION
new file mode 100644
index 0000000..09a5894
--- /dev/null
+++ b/make/lib/semantic-versioning/VERSION
@@ -0,0 +1,10 @@
+https://github.com/jeluard/semantic-versioning
+
+0.9.24-SNAPSHOT
+
+commit dd1e89102b15eb10d8c94e9efe3a4203e5484121
+Author: Julien Eluard <[email protected]>
+Date:   Fri Apr 18 08:44:34 2014 -0300
+
+branch master
+
diff --git a/make/lib/semantic-versioning/semver-src.zip b/make/lib/semantic-versioning/semver-src.zip
new file mode 100644
index 0000000..df78442
--- /dev/null
+++ b/make/lib/semantic-versioning/semver-src.zip
diff --git a/make/lib/semantic-versioning/semver.jar b/make/lib/semantic-versioning/semver.jar
new file mode 100644
index 0000000..3c9303f
--- /dev/null
+++ b/make/lib/semantic-versioning/semver.jar
diff --git a/make/lib/v2.1.5/gluegen-rt.jar b/make/lib/v2.1.5/gluegen-rt.jar
new file mode 100644
index 0000000..c20455e
--- /dev/null
+++ b/make/lib/v2.1.5/gluegen-rt.jar
diff --git a/make/scripts/runtest.sh b/make/scripts/runtest.sh
index f518668..c6bc1b7 100755
--- a/make/scripts/runtest.sh
+++ b/make/scripts/runtest.sh
@@ -57,8 +57,8 @@ rm -f $LOG
 #D_ARGS="-Djogamp.debug=all"
 
 function onetest() {
-    USE_CLASSPATH=lib/junit.jar:$ANT_JARS:"$builddir"/../make/lib/TestJarsInJar.jar:"$builddir"/gluegen-rt.jar:"$builddir"/gluegen.jar:"$builddir"/test/build/gluegen-test.jar
-    #USE_CLASSPATH=lib/junit.jar:$ANT_JARS:"$builddir"/../make/lib/TestJarsInJar.jar:"$builddir"/gluegen-rt-alt.jar:"$builddir"/gluegen.jar:"$builddir"/test/build/gluegen-test.jar
+    USE_CLASSPATH=lib/junit.jar:$ANT_JARS:lib/semantic-versioning/semver.jar:"$builddir"/../make/lib/TestJarsInJar.jar:"$builddir"/gluegen-rt.jar:"$builddir"/gluegen.jar:"$builddir"/test/build/gluegen-test.jar
+    #USE_CLASSPATH=lib/junit.jar:$ANT_JARS:lib/semantic-versioning/semver.jar:"$builddir"/../make/lib/TestJarsInJar.jar:"$builddir"/gluegen-rt-alt.jar:"$builddir"/gluegen.jar:"$builddir"/test/build/gluegen-test.jar
     libspath="$builddir"/test/build/natives
     #USE_CLASSPATH=lib/junit.jar:$ANT_JARS:"$builddir"/../make/lib/TestJarsInJar.jar:"$builddir"/classes:"$builddir"/test/build/classes
     #libspath="$builddir"/obj:"$builddir"/test/build/natives:
@@ -80,6 +80,7 @@ function onetest() {
 #onetest com.jogamp.common.util.TestSystemPropsAndEnvs 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestVersionInfo 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestVersionNumber 2>&1 | tee -a $LOG
+onetest com.jogamp.common.util.TestVersionSemantics 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestIteratorIndexCORE 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.locks.TestRecursiveLock01 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.locks.TestRecursiveThreadGroupLock01 2>&1 | tee -a $LOG
@@ -96,7 +97,6 @@ function onetest() {
 #onetest com.jogamp.common.util.TestRunnableTask01 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestIOUtil01 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestIOUtilURICompose 2>&1 | tee -a $LOG
-#onetest com.jogamp.common.GlueGenVersion 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestIOUtilURIHandling 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestTempJarCache 2>&1 | tee -a $LOG
 #onetest com.jogamp.common.util.TestJarUtil 2>&1 | tee -a $LOG
@@ -122,5 +122,5 @@ function onetest() {
 #onetest com.jogamp.gluegen.test.junit.generation.Test1p2ProcAddressEmitter 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.test.junit.generation.Test1p2LoadJNIAndImplLib 2>&1 | tee -a $LOG
 #onetest com.jogamp.gluegen.test.junit.structgen.TestStructGen01 2>&1 | tee -a $LOG
-onetest com.jogamp.gluegen.test.junit.structgen.TestStructGen02 2>&1 | tee -a $LOG
+#onetest com.jogamp.gluegen.test.junit.structgen.TestStructGen02 2>&1 | tee -a $LOG
 
diff --git a/src/junit/com/jogamp/common/util/TestVersionSemantics.java b/src/junit/com/jogamp/common/util/TestVersionSemantics.java
new file mode 100644
index 0000000..a4f33b2
--- /dev/null
+++ b/src/junit/com/jogamp/common/util/TestVersionSemantics.java
@@ -0,0 +1,149 @@
+/**
+ * Copyright 2014 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.common.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import org.junit.Assert;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runners.MethodSorters;
+import org.osjava.jardiff.DiffCriteria;
+import org.osjava.jardiff.SimpleDiffCriteria;
+import org.semver.Comparer;
+import org.semver.Delta;
+import org.semver.Dumper;
+import org.semver.Delta.Difference;
+
+import com.jogamp.common.GlueGenVersion;
+import com.jogamp.common.util.IOUtil;
+import com.jogamp.common.util.JarUtil;
+import com.jogamp.common.util.VersionNumberString;
+
+/**
+ * Compares a defined previous version with the current version.
+ * <p>
+ * {@link SimpleDiffCriteria} is chosen as it's {@link DiffCriteria},
+ * i.e. considering:
+ * <ul>
+ *   <li>not synthetic classes, methods and fields which are either
+ *   <ul>
+ *     <li>public</li>
+ *     <li>protected</li>
+ *   </ul></li>
+ * </ul>
+ * </p>
+ *
+ * @throws IllegalArgumentException
+ * @throws IOException
+ * @throws URISyntaxException
+ */
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestVersionSemantics {
+    public static final String jarFile = "gluegen-rt.jar";
+    public static final VersionNumberString preVersion = new VersionNumberString("2.1.5");
+    public static final Delta.CompatibilityType expectedCompatibilityType = Delta.CompatibilityType.BACKWARD_COMPATIBLE_USER;
+
+    @Test
+    public void testVersion01() throws IllegalArgumentException, IOException, URISyntaxException {
+
+        final GlueGenVersion glueGenVersion = GlueGenVersion.getInstance();
+        final VersionNumberString curVersion = new VersionNumberString(glueGenVersion.getImplementationVersion());
+
+        final File previousJar = new File("lib/v"+preVersion.getVersionString()+"/"+jarFile);
+
+        final ClassLoader rootCL = TestVersionSemantics.class.getClassLoader();
+
+        // Get containing JAR file "TestJarsInJar.jar" and add it to the TempJarCache
+        final URI currentJarURI = JarUtil.getJarSubURI(GlueGenVersion.class.getName(), rootCL);
+        final String currentJarLocS = IOUtil.decodeURIIfFilePath(currentJarURI);
+        final File currentJar = new File(currentJarLocS);
+
+        final DiffCriteria diffCriteria = new SimpleDiffCriteria();
+
+        final Set<String> includes = new HashSet<String>();
+
+        final Set<String> excludes = new HashSet<String>();
+        excludes.add("jogamp/**");
+
+        final Comparer comparer = new Comparer(diffCriteria, previousJar, currentJar, includes, excludes);
+        final Delta delta = comparer.diff();
+
+        //Validates that computed and provided compatibility type are compatible.
+        final Delta.CompatibilityType detectedCompatibilityType = delta.computeCompatibilityType();
+        final int comp = detectedCompatibilityType.compareTo(expectedCompatibilityType);
+        final boolean compOK = 0 >= comp;
+        final String compS;
+        if( 0 > comp ) {
+            compS = "< ";
+        } else if ( 0 == comp ) {
+            compS = "==";
+        } else {
+            compS = "> ";
+        }
+
+        System.err.println("GlueGen Semantic Versioning Test");
+        System.err.println("Previous version:   "+preVersion+" - "+previousJar.toString());
+        System.err.println("Current  version:   "+curVersion+" - "+currentJar.toString());
+        System.err.println("Compat. expected:   "+expectedCompatibilityType);
+        System.err.println("Compat. pre -> cur: "+detectedCompatibilityType);
+        System.err.println("Compat. result:     detected "+compS+" expected -> "+(compOK ? "OK" : "ERROR"));
+
+        final Set<Difference> diffs = delta.getDifferences();
+        System.err.println(diffs.size()+" differences!");
+        int diffI = 0;
+        for(final Iterator<Difference> iter = diffs.iterator(); iter.hasNext(); diffI++) {
+            final Difference diff = iter.next();
+            System.err.printf("Diff %4d: %-11s in class %s%n", diffI, diff.getClass().getSimpleName(), diff.getClassName());
+        }
+        Dumper.dump(delta);
+
+        Assert.assertTrue("Current version "+curVersion+" is "+compS+" of previous version "+preVersion, compOK);
+
+        /***
+        //Provide version number for previous and current Jar files.
+        final Version previous = Version.parse(...);
+        final Version current = Version.parse(...);
+
+        //Validates that current version number is valid based on semantic versioning principles.
+        final boolean compatible = delta.validate(previous, current);
+        */
+    }
+
+    public static void main(String args[]) throws IOException {
+        String tstname = TestVersionSemantics.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }
+
+}