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
getFilesForProject(fileSystemObjects, record.provider,
					record.parent);
			record.provider.setStrip(record.level);
			ImportOperation operation = new ImportOperation(project
					.getFullPath(), record.provider.getRoot(), record.provider,
					this, fileSystemObjects);
			operation.setContext(getShell());
			operation.run(monitor);
			return true;
		}
		
		try {
			monitor.beginTask(
					DataTransferMessages.WizardProjectsImportPage_CreateProjectsTask, 
					100); 
			project.create(record.description, new SubProgressMonitor(
					monitor, 30));
			project.open(IResource.BACKGROUND_REFRESH,
					new SubProgressMonitor(monitor, 70));
		} catch (CoreException e) {
			throw new InvocationTargetException(e);
		} finally {
			monitor.done();
		}
		return true;
	}
	/**
	 * Return a list of all files in the project
	 * 
	 * @param provider