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
}
		});
		setButtonLayoutData(selectAll);
		Button deselectAll = new Button(buttonsComposite, SWT.PUSH);
		deselectAll.setText(DataTransferMessages.DataTransfer_deselectAll);
		deselectAll.addSelectionListener(new SelectionAdapter() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
			 */
			public void widgetSelected(SelectionEvent e) {
				projectsList.setCheckedElements(new Object[0]);
			}
		});
		setButtonLayoutData(deselectAll);
		Button refresh = new Button(buttonsComposite, SWT.PUSH);
		refresh.setText(DataTransferMessages.DataTransfer_refresh);
		refresh.addSelectionListener(new SelectionAdapter() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
			 */
			public void widgetSelected(SelectionEvent e) {
				if (projectFromDirectoryRadio.getSelection())
					updateProjectsList(directoryPathField.getText().trim());
				else
					updateProjectsList(archivePathField.getText().trim());
			}