getActionPresentation().clearActionSets();
// Remove the handler submissions. Bug 64024.
final IWorkbench workbench = getWorkbench();
final IHandlerService handlerService = (IHandlerService) workbench.getService(IHandlerService.class);
handlerService.deactivateHandlers(handlerActivations);
final Iterator activationItr = handlerActivations.iterator();
while (activationItr.hasNext()) {
final IHandlerActivation activation = (IHandlerActivation) activationItr
.next();
activation.getHandler().dispose();