build.xml

<target name="compile.jar" description="Making jar lib">
    <javac 
        failonerror="true"
        destdir="temp/java_classes"
        classpath="${fre.lib}:${android.lib}"
        source="1.6" target="1.6"
        includeantruntime="false"
        bootclasspath="${java_rt.lib}">
        <src path="${java.classes}"/>
    </javac>
    <jar basedir="temp/java_classes" destfile="temp/ane/android/notifExtLib.jar"/>
</target>