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
.getZipStructureProvider(sourceFile,
										getContainer().getShell());
						this.zipCurrentProvider = provider;
						this.tarCurrentProvider = null;
						Object child = provider.getRoot();
						if (!collectProjectFilesFromProvider(files, provider,
								child, 0, monitor))
							return;
						Iterator filesIterator = files.iterator();
						selectedProjects = new ProjectRecord[files.size()];
						int index = 0;
						monitor.worked(50);
						monitor
								.subTask(DataTransferMessages.WizardProjectsImportPage_ProcessingMessage);
						while (filesIterator.hasNext())
							selectedProjects[index++] = (ProjectRecord) filesIterator
									.next();
					}
					else if (dirSelected && directory.isDirectory()) {
						if (!collectProjectFilesFromDirectory(files, directory,
								monitor))
							return;
						Iterator filesIterator = files.iterator();
						selectedProjects = new ProjectRecord[files.size()];
						int index = 0;
						monitor.worked(50);
						monitor
								.subTask(DataTransferMessages.WizardProjectsImportPage_ProcessingMessage);
						while (filesIterator.hasNext()) {
							File file = (File) filesIterator.next();