Bug 102285 [Import/Export] Project Import wizard unusably slow
R3.1 I wanted to create a new 3.2 workspace and import some projects from my 3.1 development workspace which contains around 120 plug-ins. I've set the root of the importer to point at those plug-ins. After letting the wizard scan my disk for over 10 minutes I gave up and did it manually. A possible source for the problem might be that the root directory (as expected) contains a .metadata directory with tons of data (in my case) and that this one is fully scanned.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
*/
	protected void handleLocationDirectoryButtonPressed() {
		DirectoryDialog dialog = new DirectoryDialog(directoryPathField
				.getShell());
		dialog
				.setMessage(DataTransferMessages.WizardProjectsImportPage_SelectDialogTitle);
		String dirName = directoryPathField.getText().trim();
		if (dirName.length() == 0)
			dirName = previouslyBrowsedDirectory;
		if (dirName.length() == 0)
			dialog.setFilterPath(IDEWorkbenchPlugin.getPluginWorkspace()
					.getRoot().getLocation().toOSString());
		else {
			File path = new File(dirName);
			if (path.exists())
				dialog.setFilterPath(new Path(dirName).toOSString());
		}
		String selectedDirectory = dialog.open();
		if (selectedDirectory != null) {
			previouslyBrowsedDirectory = selectedDirectory;
			directoryPathField.setText(previouslyBrowsedDirectory);
			updateProjectsList(selectedDirectory);
		}
	}
	/**
	 * The browse button has been selected. Select the location.
	 */
	protected void handleLocationArchiveButtonPressed() {
		FileDialog dialog = new FileDialog(archivePathField.getShell());
		dialog.setFilterExtensions(FILE_IMPORT_MASK);