samples/hello/build.xml

<project name="hello" default="build" basedir=".">
  <property name="sample.root" value="hello" />
  <property name="sample.module" value="Hello" />
  <property name="sample.path" value="src" />
  <import file="../common.ant.xml" />
  <!-- these are after the common.ant.xml so they have gwt.tools... -->
  <path id="sample.extraclasspath">
  </path>
</project>