Bug 66923 [typing]Can delete word (Ctrl-Backspace) on read only file
When you open read-only java file, all editing functions are disabled except deleting with Ctrl-Backspace and Ctrl-Del, then it is imposible to save this file. On simple text file it works ok - it blocks all edditing functions (including Ctrl-Backspace). I am using build 200406111814
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (action instanceof ISelectionListener) {
						((ISelectionListener)action).selectionChanged(null, null);
					}
					if (action.isEnabled())
						action.run();
				}
			}
			
		}));
		ruler.addDecorator(0, column);
		
		if (isLineNumberRulerVisible())
			ruler.addDecorator(1, createLineNumberRulerColumn());
		else if (isPrefQuickDiffAlwaysOn())
			ruler.addDecorator(1, createChangeRulerColumn());
		
		return ruler;
	}
	/**
	 * Returns the folding action group, or <code>null</code> if there is none.
	 * 
	 * @return the folding action group, or <code>null</code> if there is none
	 * @since 3.0
	 */
	protected FoldingActionGroup getFoldingActionGroup() {
		return fFoldingGroup;
	}
	
}