build.xml

<project>
    <presetdef name="javac">
        <javac includeantruntime="false" />
    </presetdef>
    
    <property name="src.dir"     value="src"/>

    <property name="build.dir"   value="build"/>
    <property name="classes.dir" value="${build.dir}/classes"/>
    <property name="jar.dir"     value="${build.dir}/jar"/>
    <property name="lib.dir"     value="lib"/>
    <property name="main-class"  value="ch.ntb.usb.usbView.UsbView"/> 

    <path id="classpath">
        <fileset dir="${lib.dir}" includes="**/*.jar"/>
    </path>   

    <target name="clean">
        <delete dir="${build.dir}"/>
    </target>

    <target name="compile">
        <mkdir dir="${classes.dir}"/>
        <javac srcdir="src" destdir="${classes.dir}" classpathref="classpath"/>
        <mkdir dir="${classes.dir}/KeepAlive"/>
        <javac srcdir="src/KeepAlive" destdir="${classes.dir}/KeepAlive"/>
    </target>

    <target name="jar">
        <mkdir dir="${jar.dir}"/>
        <jar destfile="${jar.dir}/ScaleApplet.jar" basedir="${classes.dir}">
            <zipgroupfileset dir="lib" includes="*.jar"/>
            <manifest>
                <attribute name="Main-Class" value=""/>
                <attribute name="Permissions" value="all-permissions"/>
                <attribute name="Trusted-library" value="true"/>
                <attribute name="Caller-Allowable-Codebase" value="*"/>
                <attribute name="Application-Name" value="ScaleApplet"/>
                <attribute name="Codebase" value="*"/>
            </manifest>
        </jar>
        <jar destfile="${jar.dir}/KeepAlive.jar" basedir="${classes.dir}/KeepAlive">
            <manifest>
                <attribute name="Main-Class" value=""/>
                <attribute name="Permissions" value="all-permissions"/>
                <attribute name="Trusted-library" value="true"/>
                <attribute name="Caller-Allowable-Codebase" value="*"/>
                <attribute name="Application-Name" value="KeepAlive"/>
                <attribute name="Codebase" value="*"/>
            </manifest>
        </jar>
        <!--<signjar alias="" keystore="" storepass="" storetype="pkcs12" lazy="true">
          <path>
            <fileset dir="${jar.dir}" includes="**/*.jar" />
          </path>
        </signjar>-->
    </target>
    <target name="clean-build" depends="clean,jar"/>
    <target name="main" depends="clean,compile,jar"/>

</project>