Bug 117601 [Undo] - update org.eclipse.core.commands.operations to use new equinox common utils
org.eclipse.core.commands.operations.DefaultOperationHistory - synchronizes its own listener list org.eclipse.core.commands.internal.util. - implements its own Assert. These should be updated to use the new support in org.eclipse.equinox.common
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/DefaultOperationHistory.java
} catch (Exception e) {
				notifyNotOK(operation);
				if (DEBUG_OPERATION_HISTORY_UNEXPECTED) {
					System.out
							.print("OPERATIONHISTORY >>> Exception while undoing ");  
					System.out.print(operation);
					System.out.println();
				}
				throw new ExecutionException(
						"While undoing the operation, an exception occurred", e); 
			}
		}
		
		
		if (status.isOK()) {
			
			
			
			
			
			
			
			boolean addToRedoStack = operation.canRedo();
			synchronized (undoRedoHistoryLock) {
				undoList.remove(operation);
				if (addToRedoStack && checkRedoLimit(operation)) {
					redoList.add(operation);
				}
			}
			if (!addToRedoStack) {