source: josm/build.xml @ 109

<project name="openstreetmap" default="dist" basedir=".">

  <property name="src" location="src"/>
  <property name="build" location="build"/>
  <property name="dist" location="dist"/>
  <property name="lib" location="lib"/>

  <target name="init">
    <tstamp/>
    <mkdir dir="${build}"/>
    <mkdir dir="${dist}"/>
  </target>


  <target name="compile" depends="init">
    <javac srcdir="${src}"
      classpath="${lib}/MinML2.jar:${lib}/gettext-commons-0.9.jar:${lib}/metadata-extractor-2.3.1.jar"
      debug="true"
      optimize="off"
      destdir="${build}"
      />
  </target>

  <target name="dist" depends="compile">

    <!-- jars -->
    <unjar src="${lib}/MinML2.jar" dest="${build}"/>
    <unjar src="${lib}/gettext-commons-0.9.jar" dest="${build}"/>
    <unjar src="${lib}/metadata-extractor-2.3.1.jar" dest="${build}"/>

    <!-- images -->
    <copy todir="${build}/images">
      <fileset dir="images"/>
    </copy>

    <jar destfile="${dist}/josm-custom.jar" basedir="${build}">
      <manifest>
        <attribute name="Main-class" value="org.openstreetmap.josm.gui.MainApplication" />
      </manifest> 
    </jar>
  </target>

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

</project>