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
} catch (BadLocationException x) {
					
				}
		}
		return null;
	}
	
	/*
	 * @see AbstractTextEditor#handleCursorPositionChanged()
	 */
	protected void handleCursorPositionChanged() {
		super.handleCursorPositionChanged();
		if (!isEditingScriptRunning() && fUpdater != null)
			fUpdater.post();
	}
 
	/**
	 * Initializes the given line number ruler column from the preference store.
	 * @param rulerColumn the ruler column to be initialized
	 */
	protected void initializeLineNumberRulerColumn(LineNumberRulerColumn rulerColumn) {
		JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools();
		IColorManager manager= textTools.getColorManager();	
		
		IPreferenceStore store= getPreferenceStore();
		if (store != null) {
		
			RGB rgb=  null;