build.xml

<project name="SimpleAuctioneerLogger" default="dist" basedir=".">
    <property name="src" location="src"/>
    <property name="build" location="build"/>
    <property name="libs" location="libs"/>
    <property name="dist" location="dist"/>
    
    <target name="clean">
        <delete dir="${build}"/>
        <mkdir dir="${build}"/>
    </target>
    
    <target name="compile" depends="clean">	
        <javac srcdir="${src}" destdir="${build}">
            <classpath>
                <pathelement path="${libs}/json-org.jar"/>
                <pathelement path="${libs}/socketio.jar"/>
            </classpath>
        </javac>
    </target>
    
    <target name="dist" depends="compile">
        <jar destfile="${dist}/SimpleAuctioneerLogger.jar" basedir="${build}">
            
            <fileset dir="${libs}" includes="*"/>
            <zipfileset src="jar-in-jar-loader.zip" />
            
            <manifest>
                <attribute name="Rsrc-Class-Path" value="./ json-org.jar socketio.jar" />
                <attribute name="Rsrc-Main-Class" value="AuctioneerLogger"/>
                <attribute name="Class-Path" value="."/>
                <attribute name="Main-Class" value="org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader"/>
            </manifest>
        </jar>
    </target>
    
    
</project>