build.xml

<project name="ta-lib" basedir="." default="build">
    <property name="debug"       value="true" />    
    <property name="dir.src"     value="src/" />
    <property name="file.jar"    value="ta-lib.jar" />
    <property name="dir.classes" value="classes" />
    <property name="dir.lib"     value="lib" />
	   
    <target name="build" description="Build ta-lib.">
		<echo message="Building project ${ant.project.name}"/>
        
        <copy todir="${dir.classes}" includeEmptyDirs="false">
            <fileset dir="${dir.src}" excludes="**/*.java"/>
        </copy>
        
  		<javac srcdir="${dir.src}" destdir="${dir.classes}" debug="${debug}">
        </javac>
    	    	
    	<delete file="${file.jar}" />
    	<jar destfile="${file.jar}" basedir="${dir.classes}" />
    	
    </target>
    
    <target name="clean" description="clean up all generated files.">
    	<echo message="Cleaning up project ${ant.project.name}"/>
        <delete dir="${dir.classes}" />   	
        <delete file="${file.jar}" />
    </target>
	
</project>