pom-proguard.xml

      <!-- Proguard, via une tâche Ant, pour être indépendant des plugins d'intégration
           pour Maven car aucun d'eux n'est officiel et correctement maintenu -->
      <plugin>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.7</version>
        <configuration>
          <proguardVersion>4.9</proguardVersion>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>net.sf.proguard</groupId>
            <artifactId>proguard-anttask</artifactId>
            <version>4.9</version>
          </dependency>
        </dependencies>
        <executions>
          <execution>
            <phase>package</phase>
            <configuration>
              <target>
                <property name="pg.injar" value="${project.build.directory}/${project.build.finalName}.orig.jar"/>
                <property name="pg.outjar" value="${project.build.directory}/${project.build.finalName}.jar"/>
                <property name="pg.map" value="${project.build.directory}/${project.build.finalName}.map"/>

                <delete>
                  <fileset file="${pg.injar}"/>
                  <fileset file="${pg.map}"/>
                </delete>
                <!-- Renomme l'artifact original pour que le résultat de Proguard porte ce nom -->
                <move file="${pg.outjar}" tofile="${pg.injar}" overwrite="false" />

                <echoproperties regex="^(?:pg|project|maven\.dependency)\."/>

                <!-- Doc: http://proguard.sourceforge.net/#manual/ant.html -->
                <taskdef resource="proguard/ant/task.properties" classpathref="maven.plugin.classpath"/>

                <proguard><![CDATA[
                  -injars <pg.injar>
                  -outjars <pg.outjar>

                  -libraryjars <java.home>/lib/rt.jar(java/lang/**,java/io/*,java/net/*,java/util/*,java/nio/**)
                  -libraryjars <maven.dependency.xxx.jar.path>
                  ...

                  -printseeds

                  -printmapping <pg.map>
                  -renamesourcefileattribute SourceFile
                  -keepattributes SourceFile,LineNumberTable

                  ...

                ]]></proguard>
              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
      </plugin>