build.xml

<project>
  <!-- this build is meant to be invoked by maven -->
  <target name="uptodate" unless="dojo.skipbuild">
    <uptodate property="dojo.skipbuild"
              targetFile="${dojo.build.release.location}/${dojo.build.release.name}/dojo/dojo.js">
        <srcfiles dir="${js.source}">
            <include name="**/*.js" />
            <include name="**/*.html" />
            <include name="**/*.css" />
        	  <include name="**/*.gif" />
            <include name="**/*.png" />
        	  <include name="**/*.jpg" />
        </srcfiles>          
    </uptodate>
  </target>
  
  <target name="build" depends="uptodate" unless="dojo.skipbuild">
    <exec executable="${java.home}/bin/java" 
          dir="util/buildscripts" 
    	    failonerror="true">
      <arg line="-classpath" />
      <arg line="../shrinksafe/js.jar:../shrinksafe/shrinksafe.jar" />
      <arg line="org.mozilla.javascript.tools.shell.Main" />
      <arg line="build.js" />
      <arg line="profileFile=${dojo.build.profileFile}" />
      <arg line="action=${dojo.build.action}" />
      <!--arg line="version=${dojo.build.version}" /-->
      <arg line="releaseName=${dojo.build.release.name}" />

      <arg line="releaseDir=${dojo.build.release.location}/"/>
      <!--arg line="optimize=${dojo.build.optimize}"/>
      <arg line="layerOptimize=${dojo.build.layerOptimize}"/ -->
      <arg line="internStrings=${dojo.build.internStrings}"/>
    </exec>  
  </target>
</project>

pom.xml

<plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.4</version>
        <executions>
            <execution>
                <id>dojo-custom-build</id>
                <phase>prepare-package</phase>
                <goals>
                    <goal>run</goal>
                </goals>
                <configuration>
                    <tasks unless="dojo.skipbuild">
                        <ant antfile="${js.source}/build.xml" target="build" dir="${js.source}" />
                    </tasks>
                </configuration>
            </execution>
        
        </executions>
      </plugin>