build.xml

<?xml version="1.0"?>
<project name="taskbase" basedir="." default="compile"
         xmlns:ivy="antlib:org.apache.ivy.ant">
    <!-- Variables -->
    <property name="src.dir" value="src"/>
    <property name="lib1.dir" value="mavenlib"/>
    <property name="lib2.dir" value="lib"/>
    <property name="build.dir" value="out"/>

    <!-- Classpath -->
    <path id="classpath">
        <fileset dir="${lib1.dir}" includes="*.jar"/>
        <fileset dir="${lib2.dir}" includes="*.jar"/>
    </path>

    <!-- Compile the java source code -->
    <target name="compilejava">
        <javac encoding="UTF8" srcdir="${src.dir}" destdir="${build.dir}" classpathref="classpath" includeantruntime="false" verbose="false" debug="true"/>
    </target>

    <target name="compile" depends="resolve, compilejava"></target>

    <!-- package resolving -->
    <path id="ivy.lib.path">
        <fileset dir="${lib2.dir}" includes="*.jar"/>
    </path>

    <taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant"
             classpathref="ivy.lib.path"/>

    <target name="resolve" description="Retrieve dependencies with Apache IVY">
        <ivy:retrieve type="jar,bundle" pattern="${lib1.dir}/[artifact].[ext]" sync="true"/>
    </target>
</project>