build.xml

<project name="rivers"
         default="compile"
         basedir=".">

  <property name="src.dir" value="${basedir}/src" />
  <property name="lib.dir" value="${basedir}/lib" />
  <property name="build.dir" value="${basedir}/bin" />
  <property environment="env" />
  <property name="run.dir" value="${env.WORK}/output" />

  <path id="compile.classpath">
    <fileset dir="${lib.dir}" includes="*.jar" />
  </path>

  <path id="run.classpath">
    <pathelement path="${build.dir}" />
    <path refid="compile.classpath" />
  </path>

  <target name="init">
    <mkdir dir="${build.dir}" />
  </target>

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

  <target name="compile" depends="init" description="compile">
    <javac srcdir="${src.dir}"
           destdir="${build.dir}"
           includeantruntime="false"
           classpathref="compile.classpath"
           nowarn="true"
           encoding="UTF-8" />
  </target>

  <target name="RunRiverSystems" depends="compile" description="run program RiverSystems">
    <echo>RunRiverSystems ${args}</echo>
    <java classname="com.skaringa.riversystem.RiverSystems"
          fork="yes"
          classpathref="run.classpath"
          dir="${run.dir}">
      <jvmarg value="-Xmx20G" />
      <arg line="${args}" />
    </java>
  </target>

</project>