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
WizardExportResourcesPage implements Listener {
    
    private Combo destinationNameField;
    private Button destinationBrowseButton;
    protected Button overwriteExistingFilesCheckbox;
    protected Button createDirectoryStructureButton;
    protected Button createSelectionOnlyButton;
    
    private static final String STORE_DESTINATION_NAMES_ID = "WizardFileSystemResourceExportPage1.STORE_DESTINATION_NAMES_ID"; 
    private static final String STORE_OVERWRITE_EXISTING_FILES_ID = "WizardFileSystemResourceExportPage1.STORE_OVERWRITE_EXISTING_FILES_ID"; 
    private static final String STORE_CREATE_STRUCTURE_ID = "WizardFileSystemResourceExportPage1.STORE_CREATE_STRUCTURE_ID"; 
    
    private static final String SELECT_DESTINATION_MESSAGE = DataTransferMessages.FileExport_selectDestinationMessage;
    private static final String SELECT_DESTINATION_TITLE = DataTransferMessages.FileExport_selectDestinationTitle;
    /**
     *	Create an instance of this class
     */
    protected WizardFileSystemResourceExportPage1(String name,
            IStructuredSelection selection) {
        super(name, selection);
    }
    /**
     * Create an instance of this class.
     *
     * @param selection the selection
     */
    public WizardFileSystemResourceExportPage1(IStructuredSelection selection) {
        this("fileSystemExportPage1", selection);