rcp 右键菜单添加eclipse自带的新建文件和新建文件夹菜单

plugin.xml中配置如下

 <extension
         point="org.eclipse.ui.navigator.navigatorContent">
<commonWizard
            menuGroupId="group.5.new"
            type="new"
            wizardId="org.eclipse.ui.wizards.new.file">
         <enablement>
            <and>
               <adapt
                     type="org.eclipse.core.resources.IContainer">
               </adapt>
               <not>
                  <adapt
                        type="org.eclipse.core.resources.IWorkspaceRoot">
                  </adapt>
               </not>
            </and></enablement>
      </commonWizard>
      <commonWizard
            menuGroupId="group.5.new"
            type="new"
            wizardId="org.eclipse.ui.wizards.new.folder">
         <enablement>
            <and>
               <adapt
                     type="org.eclipse.core.resources.IContainer">
               </adapt>
               <not>
                  <adapt
                        type="org.eclipse.core.resources.IWorkspaceRoot">
                  </adapt>
               </not>
            </and></enablement>
      </commonWizard>
 </extension>