Bug 97523 [Import/Export] Get overwrite prompt before no resources selected prompt
3.1 RC1 - File > Export > Archive - clear any selected resources - enter an archive file name where the file already exists - Finish - it prompts to overwrite the file; choose Yes - it says "There are no resources currently selected for export" (OK) Should get the "no resources" prompt first, and not bother with the second one. Should check the other export wizards too.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceExportPage1.java
setTitle(DataTransferMessages.DataTransfer_fileSystemTitle);
        setDescription(DataTransferMessages.FileExport_exportLocalFileSystem);
    }
    /**
     *	Add the passed value to self's destination widget's history
     *
     *	@param value java.lang.String
     */
    protected void addDestinationItem(String value) {
        destinationNameField.add(value);
    }
    /** (non-Javadoc)
     * Method declared on IDialogPage.
     */
    public void createControl(Composite parent) {
        super.createControl(parent);
        giveFocusToDestination();
        PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(),
                IDataTransferHelpContextIds.FILE_SYSTEM_EXPORT_WIZARD_PAGE);
    }
    /**
     *	Create the export destination specification widgets
     *
     *	@param parent org.eclipse.swt.widgets.Composite
     */
    protected void createDestinationGroup(Composite parent) {
        Font font = parent.getFont();
        
        Composite destinationSelectionGroup = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();