build.xml

<project name="AEP_Project" basedir="." default="test">

  <path id="test.classpath">
    <pathelement path="target/classes"/>
    <pathelement path="target/test-classes"/>
    <pathelement path="lib/junit-4.12.jar"/>
    <pathelement path="lib/hamcrest-core-1.3.jar"/>
    <pathelement path="lib/algs4.jar"/>
    <pathelement path="jh61b.jar"/>
  </path>

  <path id="src.classpath">
    <pathelement path="target/classes"/>
    <pathelement path="lib/algs4.jar"/>
    <pathelement path="jh61b.jar"/>
  </path>

  <target name="init">
    <mkdir dir="target/classes"/>
    <mkdir dir="target/test-classes"/>
    <mkdir dir="target/reports"/>
  </target>

  <target name="clean">
    <delete dir="target" includeemptydirs="true"/>
  </target>

  <target name="compile" depends="init">
    <javac destdir="target/classes" target="1.8" source="1.8" debug="true" includeantruntime="false">
      <classpath refid="src.classpath" />
      <src path="src/main" />
    </javac>
  </target>

  <target name="compile-tests" depends="compile, init">
    <javac destdir="target/test-classes" target="1.8" source="1.8" includeantruntime="false">
      <classpath refid="test.classpath"/>
      <src path="src/test" />
    </javac>
  </target>

  <target name="test" depends="compile, compile-tests">
    <junit printsummary="on" haltonfailure="no" failureproperty="test.failure" >
      <classpath refid="test.classpath"/>
      <batchtest todir="target/reports">
        <fileset dir="target/test-classes" includes="**/*Test*.class" />
        <formatter type="plain"/>
      </batchtest>
    </junit>
    <fail message="Test failure detected, check test results." if="test.failure" />
  </target>

</project>