Bug 63155 [Refactoring] no user feedback when error during implicit refactoring triggered by drag'n'drop
org.eclipse.ltk.core.refactoring/src/org/eclipse/ltk/core/refactoring/participants/ProcessorBasedRefactoring.java
RefactoringCorePlugin.logRemovedParticipant(descriptor, e);
			}
			if (pm.isCanceled())
				throw new OperationCanceledException();
		}
		Change postChange= getProcessor().postCreateChange(
			(Change[])changes.toArray(new Change[changes.size()]), 
			new SubProgressMonitor(pm, 1));
		
		ProcessorChange result= new ProcessorChange(getName());
		result.add(processorChange);
		result.addAll((Change[]) changes.toArray(new Change[changes.size()]));
		result.setParticipantMap(participantMap);
		if (postChange != null)
			result.add(postChange);
		return result;
	}
	
	/**
	 * Adapts the refactoring to the given type. The adapter is resolved
	 * as follows:
	 * <ol>
	 *   <li>the refactoring itself is checked whether it is an instance
	 *       of the requested type.</li>
	 *   <li>its processor is checked whether it is an instance of the
	 *       requested type.</li>
	 *   <li>the request is delegated to the super class.</li>
	 * </ol>
	 * 
	 * @param clazz the adapter class to look up