Bug 202639 [Import/Export] [Import/Export] Improve warning messages in WizardFileSystemResourceExportPage1
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceExportPage1.java
if (!queryYesNoQuestion(DataTransferMessages.DataTransfer_createTargetDirectory)) {
				return false;
			}
            if (!directory.mkdirs()) {
                displayErrorDialog(DataTransferMessages.DataTransfer_directoryCreationError);
                giveFocusToDestination();
                return false;
            }
        }
        return true;
    }
    /**
     *	If the target for export does not exist then attempt to create it.
     *	Answer a boolean indicating whether the target exists (ie.- if it
     *	either pre-existed or this method was able to create it)
     *
     *	@return boolean
     */
    protected boolean ensureTargetIsValid(File targetDirectory) {
        if (targetDirectory.exists() && !targetDirectory.isDirectory()) {
            displayErrorDialog(DataTransferMessages.FileExport_directoryExists);
            giveFocusToDestination();
            return false;
        }
        return ensureDirectoryExists(targetDirectory);
    }
    /**
     *  Set up and execute the passed Operation.  Answer a boolean indicating success.
     *
     *  @return boolean