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
}
	
	/**
	 * {@inheritDoc}
	 */
	public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
		if (pm == null)
			pm= new NullProgressMonitor();
		RefactoringStatus result= new RefactoringStatus();
		pm.beginTask("", 10); 
		pm.setTaskName(RefactoringCoreMessages.getString("ProcessorBasedRefactoring.initial_conditions")); 
		
		result.merge(getProcessor().checkInitialConditions(new SubProgressMonitor(pm, 8)));
		if (result.hasFatalError()) {
			pm.done();
			return result;
		}
		pm.done();
		return result;
	}
	
	/**
	 * {@inheritDoc}
	 */
	public RefactoringStatus checkFinalConditions(IProgressMonitor pm) throws CoreException {
		if (pm == null)
			pm= new NullProgressMonitor();
		RefactoringStatus result= new RefactoringStatus();
		CheckConditionsContext context= createCheckConditionsContext();