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
File projectSystemFile;
		Object projectArchiveFile;
		String projectName;
		Object parent;
		int level;
		IProjectDescription description;
		ILeveledImportStructureProvider provider;
		/**
		 * Create a record for a project based on the info in the file.
		 * 
		 * @param file
		 */
		ProjectRecord(File file) {
			projectSystemFile = file;
			setProjectName();
		}
		/**
		 * @param file
		 *            The Object representing the .project file
		 * @param parent
		 *            The parent folder of the .project file
		 * @param level
		 *            The number of levels deep in the provider the file is
		 * @param entryProvider
		 *            The provider for the archive file that contains it
		 */
		ProjectRecord(Object file, Object parent, int level,
				ILeveledImportStructureProvider entryProvider) {
			this.projectArchiveFile = file;