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[news.eclipse.platform.rcp] Re: Eclipse 3.3 commands and property testers
Christopher Hammack wrote: 
<extension
     point="org.eclipse.core.expressions.propertyTesters">
  <propertyTester
        class="com.foo.menus.MenuPropertyTester"
        id="com.foo.menus.MenuPropertyTester"
        namespace="com.foo.menus"
        properties="test123"
        type="java.lang.Object">
  </propertyTester>
</extension>


Here is my handler:
  <handler
        class="com.foo.menus.MenuRetrievalHandler"
        commandId="com.foo.menus.bundleProductRetrieval">
     <enabledWhen>
        <with
              variable="activeContexts">
           <test
                 property="com.foo.menus.test123">
           </test>
        </with>
     </enabledWhen>
  </handler>



Your definitions look fine.  Things I would try in order:

1) change the variable from activeContexts to activePart (I don't know that it makes a difference, but I'd try it anyway :-)

2) See if it's just a bundle activation delay, try adding an org.eclipse.ui.startup extension (and point it to a dummy class, not your plugin activator class). It might be it is not loading the property tester, although I thought it should default to true if it wasn't.

3) check your workspace logs for any errors ... <workspace>/.metadata/.log

4) If that doesn't work I would try downloading today's I build into a temp location (I20070417-0800) and testing it from that platform. There were a couple of bugs fixed with contexts and plugin loading in the last 2 weeks that wouldn't be in 3.3M6

PW