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/WizardFileSystemResourceImportPage1.java
* 	Since Finish was pressed, write widget values to the dialog store so that they
     *	will persist into the next invocation of this wizard page
     */
    protected void saveWidgetValues() {
        IDialogSettings settings = getDialogSettings();
        if (settings != null) {
            
            String[] sourceNames = settings.getArray(STORE_SOURCE_NAMES_ID);
            if (sourceNames == null)
                sourceNames = new String[0];
            sourceNames = addToHistory(sourceNames, getSourceDirectoryName());
            settings.put(STORE_SOURCE_NAMES_ID, sourceNames);
            	
            settings.put(STORE_OVERWRITE_EXISTING_RESOURCES_ID,
                    overwriteExistingResourcesCheckbox.getSelection());
            settings.put(STORE_CREATE_CONTAINER_STRUCTURE_ID,
                    createContainerStructureButton.getSelection());
        }
    }
    /**
     * Invokes a file selection operation using the specified file system and
     * structure provider.  If the user specifies files to be imported then
     * this selection is cached for later retrieval and is returned.
     */
    protected MinimizedFileSystemElement selectFiles(
            final Object rootFileSystemObject,
            final IImportStructureProvider structureProvider) {
        final MinimizedFileSystemElement[] results = new MinimizedFileSystemElement[1];
        BusyIndicator.showWhile(getShell().getDisplay(), new Runnable() {
            public void run() {