build.xml

<?xml version="1.0"?>
<project name="Wrapper" default="jar">
   <property name="src" location="src"/>
   <property name="lib" location="lib"/>
   <property name="resources" location="resources"/>
   <property name="cpy" location="cpy"/>
   <property name="build" location="build"/>
   <property name="dist" location="dist"/>

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

   <target name="mkdir">
      <mkdir dir="${build}"/>
      <mkdir dir="${dist}"/>
   </target>
   
   <target name="clean">
      <delete dir="${build}"/>
      <delete dir="${dist}"/>
   </target>

   <target name="compile" depends="clean, mkdir">
      <javac srcdir="${src}" destdir="${build}" includeantruntime="false">
         <classpath refid="build.classpath"/>
      </javac>
   </target>

   <target name="copy">
      <copy todir="${dist}" overwrite="true">
         <fileset dir="${cpy}"/>
      </copy>
   </target>
      

   <target name="jar" depends="compile, copy">
      <jar destfile="${dist}/${ant.project.name}.jar" basedir="${build}">
         <manifest>
            <attribute name="Main-Class" value="wrapper.Wrapper"/>
         </manifest>
         <zipgroupfileset dir="${lib}" includes="**/*.jar"/>
      </jar>
   </target>

   <target name="run" depends="copy">
      <java jar="${dist}/${ant.project.name}.jar" fork="true"/>
   </target>

   <target name="printclasspath">
   <!-- Write the classpath to the console. Helpful for debugging -->
   <!-- Create one line per classpath element-->
   <pathconvert pathsep="${line.separator}" property="echo.classpath" refid="build.classpath">
   </pathconvert>
   <!-- Write the result to the console -->
   <echo message="The following classpath is being used " />
   <echo message="${echo.classpath}" /> 
   </target>

</project>