build.xml

<project name="rocksdb-jna" default="dist" basedir=".">
    <!-- set global properties for this build -->
  <property name="src" location="src"/>
  <property name="dist"  location="dist"/>
  <property name="lib"   location="lib"/>

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

  <target name="compile" depends="clean" description="compile the source " >
    <mkdir dir="${dist}"/>
    <javac srcdir="${src}" destdir="${dist}">
      <classpath refid="lib-classpath" />
    </javac>
  </target>

  <target name="dist" depends="compile" description="generate the distribution" >
    <mkdir dir="${dist}"/>
    <jar jarfile="${dist}/rocksdb-jna.jar" basedir="${dist}">
        <zipgroupfileset dir="lib" includes="*.jar"/>
    </jar>
  </target>

  <target name="clean" description="clean up" >
    <delete dir="${dist}"/>
  </target>
</project>