build.xml

<project basedir="." default="jar">
    <property name="src" value="src"></property>
    <property name="classes" value="classes"></property>
    <property name="bin" value="bin"></property>

      <target name="init">
          <mkdir dir="${classes}"></mkdir>
          <mkdir dir="${bin}"></mkdir>
      </target>

      <target name="compile" depends="init">
          <javac srcdir="${src}" destdir="${classes}">
              <classpath>
                   <fileset dir="..\lib" includes="*.jar"></fileset>
              </classpath>
          </javac>
      </target>

      <target name="jar" depends="compile">
         <jar basedir="${classes}" destfile="${bin}/ws-policy.jar"></jar>
          <copy file="${bin}/ws-policy.jar" todir="../lib" overwrite="true"></copy>
      </target>
</project>