Bug 34221 [code manipulation] Comment and uncomment code
The same key ctrl-/ should be used for both comments and uncommenting code. If code isn't commented ctrl-/ will comment. If already commented ctrl-/ will uncomment it. If two levels of comments, uncomment the first, then the second. For example //this is a comment ////this is a second comment hitting ctrl-/ would result in this is a comment //this is a second comment
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
/*
	 * @see AbstractTextEditor#editorContextMenuAboutToShow(IMenuManager)
	 */
	public void editorContextMenuAboutToShow(IMenuManager menu) {
		super.editorContextMenuAboutToShow(menu);		
				
		ActionContext context= new ActionContext(getSelectionProvider().getSelection());
		fContextMenuGroup.setContext(context);
		fContextMenuGroup.fillContextMenu(menu);
		fContextMenuGroup.setContext(null);
	}
	
	/*
	 * @see JavaEditor#setOutlinePageInput(JavaOutlinePage, IEditorInput)
	 */
	protected void setOutlinePageInput(JavaOutlinePage page, IEditorInput input) {
		if (page != null) {
			IWorkingCopyManager manager= JavaPlugin.getDefault().getWorkingCopyManager();
			page.setInput(manager.getWorkingCopy(input));
		}
	}
	
	/*
	 * @see org.eclipse.ui.texteditor.AbstractTextEditor#performSave(boolean, org.eclipse.core.runtime.IProgressMonitor)
	 */
	protected void performSave(boolean overwrite, IProgressMonitor progressMonitor) {
		IDocumentProvider p= getDocumentProvider();
		if (p instanceof ICompilationUnitDocumentProvider) {
			ICompilationUnitDocumentProvider cp= (ICompilationUnitDocumentProvider) p;
			cp.setSavePolicy(fSavePolicy);