Bug 179551 [Undo] DefaultOperationHistory should write exceptions to log when running in Eclipse
I20070323-1616 DefaultOperationHistory#handleNotificationException(..) should write exceptions to the log when running in Eclipse. Bugs like 176644 are easy to miss when exceptions only appear on the console.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/DefaultOperationHistory.java
/*
	 * Notify listeners that an operation is about to undo.
	 */
	private void notifyAboutToUndo(IUndoableOperation operation) {
		if (DEBUG_OPERATION_HISTORY_NOTIFICATION) {
			Tracing.printTrace("OPERATIONHISTORY", "ABOUT_TO_UNDO " 
					+ operation);
		}
		notifyListeners(new OperationHistoryEvent(
				OperationHistoryEvent.ABOUT_TO_UNDO, this, operation));
	}
	/*
	 * Notify listeners that an operation has been added.
	 */
	private void notifyAdd(IUndoableOperation operation) {
		if (DEBUG_OPERATION_HISTORY_NOTIFICATION) {
			Tracing.printTrace("OPERATIONHISTORY", "OPERATION_ADDED " 
					+ operation);
		}
		notifyListeners(new OperationHistoryEvent(
				OperationHistoryEvent.OPERATION_ADDED, this, operation));
	}
	/*
	 * Notify listeners that an operation is done executing.
	 */
	private void notifyDone(IUndoableOperation operation) {
		if (DEBUG_OPERATION_HISTORY_NOTIFICATION) {
			Tracing.printTrace("OPERATIONHISTORY", "DONE " + operation); 
		}
		notifyListeners(new OperationHistoryEvent(OperationHistoryEvent.DONE,