build.xml

<?xml version="1.0" encoding="UTF-8"?>
<project name="jobcontrol" default="jar">
  <property name="hadoop.home" value="/opt/hadoop"/>
  <path id="hadoop.classpath">
    <fileset dir="${hadoop.home}">
      <include name="*.jar"/>
    </fileset>
    <fileset dir="${hadoop.home}/lib">
      <include name="*.jar"/>
    </fileset>
  </path>
  <target name="init">
    <mkdir dir="target"/>
    <mkdir dir="target/classes"/>
  </target>
  <target name="clean">
    <delete includeemptydirs="true">
      <fileset dir="target"/>
    </delete>
  </target>
  <target name="compile" depends="init">
    <javac srcdir="src/" destdir="target/classes" debug="true">
      <classpath refid="hadoop.classpath" />
    </javac>
  </target>
  <target name="jar" depends="compile">
    <jar basedir="target/classes" destfile="target/keywords.jar" />
  </target>
</project>