ant 打包脚本

整理了一下编译JDK源码的Ant脚本。发现用新一点的JDK编译旧的版本更容易，比如用jdk1.6.0_25编译jdk1.6.0_21。如果直接用jdk1.6.0_21编译自身代码，不是缺这个就是没那个，颇为麻烦。切到jdk1.6.0_25后，一下就编译通过了。
<project name="create rt_debug.jar" default="createJar" basedir=".">
    <!-- *************************************************************** -->
    <!-- Set-Up of propertys -->
    <!-- *************************************************************** -->
    <property name="project.build" location="build" />
    <property name="project.src" location="${project.build}/src" />
    <property name="project.classes" location="${project.build}/classes" />
    <property name="project.dist" location="${project.build}/dist" />
     <property name="JAVA_SOURCE" value="C:/Dev/Software/Java/jdk1.6.0_21" />
  <property name="JAVA_COMPILER" value="C:/Dev/Software/Java/jdk1.6.0_25/fastdebug" />   
    <property name="debuglevel" value="source,lines,vars" />
    <property name="target" value="1.6" />
    <property name="source" value="1.6" />
    <property environment="env" />
    <!-- *************************************************************** -->
    <!-- Initialize the bulid environment. -->
    <!-- *************************************************************** -->
    <target name="init">
        <!-- Create the time stamp -->
        <tstamp />
    </target>
    <!-- *************************************************************** -->
    <!-- Set-Up of classpath -->
    <!-- *************************************************************** -->
    <path id="JavaLibraries">
        <pathelement location="${project.classes}" />
        <fileset dir="${JAVA_COMPILER}/lib">
            <include name="**/*.jar" />
        </fileset>       
        <fileset dir="${JAVA_COMPILER}/jre/lib">
            <include name="**/*.jar" />
        </fileset>               
    </path>
    <path id="project.classpath">
        <path refid="JavaLibraries" />
    </path>
    <!-- *************************************************************** -->
    <!-- Clean the bulid environment. -->
    <!-- *************************************************************** -->
    <target name="clean" depends="init">
        <delete dir="${project.build}" quiet="true" />
        <mkdir dir="${project.build}" />
    </target>
    <!-- *************************************************************** -->
    <!-- Unpacd the source code package. -->
    <!-- *************************************************************** -->
    <target name="unpack" depends="init, clean">
        <unzip src="${JAVA_SOURCE}/src.zip" dest="${project.src}" />
    </target>
    <!-- ****************************************************************** -->
    <!-- Compile the source code. -->
    <!-- ******************************************************************* -->
    <target name="build" depends="unpack">
        <echo message="Compile ${ant.project.name}" />
        <mkdir dir="${project.classes}" />
        <javac classpathref="project.classpath" srcdir="${project.src}" destdir="${project.classes}" debug="true" debuglevel="${debuglevel}" source="${source}" target="${target}" fork="true" memoryMaximumSize="512m">
            <include name="**/*.java" />
        </javac>
    </target>
    <!-- ****************************************************************** -->
    <!-- Create jar package. -->
    <!-- ******************************************************************* -->
    <target name="createJar" depends="build">
        <mkdir dir="${project.dist}" />
        <jar jarfile="${project.dist}/rt_debug.jar" compress="false">
            <fileset dir="${project.classes}" />
        </jar>
    </target>
</project>