Our coregui module needs to be able to support GWT unit tests. Right now, our maven setup can't initialize GWT for running GWT component unit tests. See the following docs to help start: http://code.google.com/webtoolkit/doc/latest/tutorial/JUnit.html http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/gwt/junit/client/GWTTestCase.html http://code.google.com/webtoolkit/doc/latest/DevGuideTesting.html http://mojo.codehaus.org/gwt-maven-plugin/user-guide/testing.html