Bug 33629 Double-quote as character value broken in RC1
There is a series of related bugs under the category of it's really hard to enter a character value containing a double-quote character and when you try it strange things can happen. 1. Single-quote balancing seems not to work at all. When you type a single quote you get a single quote. 2. When you type the character sequence '" the result is '"" (!) 3. When you try to backspace over the extra unwanted " (either the first or the second) both are erased. The only way to get the desired result seems to be to copy and paste the " character. 4. If you try to cut and paste in the ", you can get in some weird mode where the editor thinks a string exists where there is none. I'm still trying to figure out the sequence that produced the following lines: if (c == ''' || c == '"') {" + "} (Leading tabs removed for sake of example.) I only know that the last two " characters were not typed. No doubt another illustration why editor modes are a bad idea.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
String t= types[i];
			ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer instanceof ITextViewerExtension2) {
							
				((ITextViewerExtension2)sourceViewer).removeTextHovers(t);
				
				int[] stateMasks= configuration.getConfiguredTextHoverStateMasks(getSourceViewer(), t);
				if (stateMasks != null) {
					for (int j= 0; j < stateMasks.length; j++)	{
						int stateMask= stateMasks[j];
						ITextHover textHover= configuration.getTextHover(sourceViewer, t, stateMask);
						((ITextViewerExtension2)sourceViewer).setTextHover(textHover, t, stateMask);
					}
				} else {
					ITextHover textHover= configuration.getTextHover(sourceViewer, t);
					((ITextViewerExtension2)sourceViewer).setTextHover(textHover, t, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK);
				}
			} else
				sourceViewer.setTextHover(configuration.getTextHover(sourceViewer, t), t);
		}
	}
	
	/*
	 * @see org.eclipse.jdt.internal.ui.viewsupport.IViewPartInputProvider#getViewPartInput()
	 */
	public Object getViewPartInput() {
		return getEditorInput().getAdapter(IJavaElement.class);
	}