adding and removing popup menu items for java file

I wanted to add one item in the popup when I right click all java file which is in the package explorer. I gave the object class as org.eclipse.core.resources.IFile and nameFilter is *.java. But it开发者_如何学Go does not work for me.But If I give some other extensions as namefilter like *.abc, then it works for me. How do I add popupmenu items into java files?Wont eclipse support the popumenu item for adding into java files? And also I need to remove some of the existing popumenu items for the java files.How can I do that?

Please help me in this.

Thanks Bhanu

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Use commands, not actions. The code below should work.

<extension
         point="org.eclipse.ui.menus">
      <menuContribution
            locationURI="popup:org.eclipse.jdt.ui.PackageExplorer">
         <command
               commandId="my id"
               label="my command label"
               style="push">
          <visibleWhen>
           <with variable="activeMenuSelection">
            <iterate
                 ifEmpty="false">
             <adapt type="org.eclipse.core.resources.IResource">
               <test property="org.eclipse.core.resources.name" value="*.java" />
             </adapt>
            </iterate>
           </with>
         </visibleWhen>
       </command>
      </menuContribution>
</extension>

However, if you must contribute an action, here's how to do it.

As for removing items from a menu, this question has been posted and answered several times on SO already, for example here.