build.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project basedir="." default="build" name="jamm" xmlns:ivy="antlib:org.apache.ivy.ant">
  <property name="debuglevel" value="source,lines,vars"/>
  <property name="version" value="0.2.5"/>

  <property name="basedir" value="."/>
  <property name="build.src" value="${basedir}/src"/>
  <property name="build.dir" value="${basedir}/build"/>
  <property name="build.lib" value="${basedir}/build/lib"/>
  <property name="build.classes" value="${build.dir}/classes"/>
  <property name="jar.name" value="jamm-${version}.jar"/>

  <property name="test.src" value="${basedir}/test"/>
  <property name="test.classes" value="${build.dir}/test/classes"/>
  <property name="test.out" value="${build.dir}/test/output"/>
  <property name="test.name" value="*Test"/>

  <property name="ivy.version" value="2.1.0" />
  <property name="ivy.url"
            value="http://repo2.maven.org/maven2/org/apache/ivy/ivy" />

  <condition property="ivy.jar.exists">
    <available file="${build.dir}/ivy-${ivy.version}.jar" />
  </condition>

  <target name="ivy-download" unless="ivy.jar.exists">
    <echo>Downloading Ivy...</echo>
    <mkdir dir="${build.dir}" />
    <get src="${ivy.url}/${ivy.version}/ivy-${ivy.version}.jar"
         dest="${build.dir}/ivy-${ivy.version}.jar" usetimestamp="true" />
  </target>

  <target name="ivy-init" depends="ivy-download" unless="ivy.initialized">
    <mkdir dir="${build.lib}"/>
    <taskdef resource="org/apache/ivy/ant/antlib.xml"
             uri="antlib:org.apache.ivy.ant"
             classpathref="autoivy.classpath"/>
    <property name="ivy.initialized" value="true"/>
  </target>

  <target name="ivy-retrieve-build" depends="ivy-init">
    <ivy:retrieve type="jar,source" sync="true"
           pattern="${build.lib}/[type]s/[artifact]-[revision].[ext]" />
  </target>

  <path id="autoivy.classpath">
    <fileset dir="${build.lib}">
      <include name="**/*.jar" />
    </fileset>
    <pathelement location="${build.dir}/ivy-${ivy.version}.jar"/>
  </path>

  <target name="init" depends="ivy-retrieve-build">
    <mkdir dir="${build.classes}"/>
    <mkdir dir="${test.classes}"/>
  </target>
  <target name="clean">
    <delete dir="${build.classes}"/>
    <delete dir="${test.classes}" />
    <delete dir="${test.out}" />
  </target>

  <target depends="init" name="build">
    <echo message="${ant.project.name}: ${ant.file}"/>
    <javac debug="true" debuglevel="${debuglevel}" destdir="${build.classes}">
      <src path="${build.src}"/>
    </javac>
  </target>

  <target name="jar" depends="build">
    <jar jarfile="${build.dir}/${jar.name}" basedir="${build.classes}">
      <manifest>
        <!-- see http://download.oracle.com/javase/6/docs/api/java/lang/instrument/package-summary.html -->
        <attribute name="Premain-Class" value="org.github.jamm.MemoryMeter"/>
      </manifest>
    </jar>
  </target>

  <target name="build-test" depends="jar" description="Compile test classes">
    <javac debug="true" debuglevel="${debuglevel}" destdir="${test.classes}">
      <classpath>
        <path refid="autoivy.classpath"/>
        <pathelement location="${build.classes}"/>
      </classpath>
      <src path="${test.src}"/>
    </javac>
  </target>

  <target name="test" depends="build-test">
    <echo message="running tests"/>
    <mkdir dir="${test.out}"/>
    <junit fork="on" failureproperty="testfailed">
      <formatter type="xml" usefile="true"/>
      <formatter type="brief" usefile="false"/>
      <classpath>
        <path refid="autoivy.classpath"/>
        <pathelement location="${build.classes}"/>
        <pathelement location="${test.classes}"/>
      </classpath>
      <jvmarg value="-ea"/>
      <jvmarg value="-javaagent:${build.dir}/${jar.name}"/>
      <batchtest todir="${test.out}">
        <fileset dir="${test.classes}" includes="**/${test.name}.class" />
      </batchtest>
    </junit>

    <fail if="testfailed" message="Some test(s) failed."/>
  </target>

</project>