IFile[] unSavedFiles= ConfirmSaveModifiedResourcesDialog.getUnsavedFiles(resources);
IFile[] unSavedFiles= getUnsavedFiles(resources);
	private void checkPreconditions(List resources) {		IFile[] unSavedFiles= ConfirmSaveModifiedResourcesDialog.getUnsavedFiles(resources);			saveModifiedResourcesIfUserConfirms(unSavedFiles);	}