Comment by fkereki: In
<replace-with class="com.example.Feature1Alternate"> <when-type-is class="com.example.Feature1" /> <when-property-is name="alternateFeatures" value="true" /> </replace-with> <replace-with class="com.example.Feature2Alternate"> <when-type-is class="com.example.Feature2" /> <when-property-is name="alternateFeatures" value="true" /> </replace-with> shouldn't some condition be value="false"? For more information: http://code.google.com/p/google-web-toolkit/wiki/ConditionalProperties -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
