Note: The following only applies to Enunciate 1.x

For GWT users, Enunciate spawns a separate JVM to invoke the GWT compile command on the applications. It's easy to get an OutOfMemoryError when invoking Enunciate. In order to avoid this, you must configure the GWT compile JVM using the gwtCompileJVMArg configuration element:

<enunciate ...>
  ...
  <modules>
    ...
    <gwt>
      <gwtCompileJVMArg value="-Xms128m"/>
      <gwtCompileJVMArg value="-Xmx1024m"/>
    </gwt>
  </modules>
</enunciate>