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
/**
	 * Perform the redo. All validity checks have already occurred.
	 * 
	 * @param monitor
	 * @param operation
	 */
	private IStatus doRedo(IProgressMonitor monitor, IAdaptable info,
			IUndoableOperation operation) throws ExecutionException {
		IStatus status = getRedoApproval(operation, info);
		if (status.isOK()) {
			notifyAboutToRedo(operation);
			try {
				status = operation.redo(monitor, info);
			} catch (OperationCanceledException e) {
				status = Status.CANCEL_STATUS;
			} catch (ExecutionException e) {
				notifyNotOK(operation);
				if (DEBUG_OPERATION_HISTORY_UNEXPECTED) {
					System.out
							.print("OPERATIONHISTORY >>> ExecutionException while redoing ");  
					System.out.print(operation);
					System.out.println();
				}
				throw e;
			} catch (Exception e) {
				notifyNotOK(operation);
				if (DEBUG_OPERATION_HISTORY_UNEXPECTED) {
					System.out
							.print("OPERATIONHISTORY >>> Exception while redoing ");  
					System.out.print(operation);