Bug 301131 CreateGroupOperation, GroupDescription should be renamed or merged into existing classes
There are some remaining issues related to renamin Groups into Virtual Folders. org.eclipse.ui.internal.ide.undo.GroupDescription IMO should be merged with FolderDescription org.eclipse.ui.ide.undo.CreateGroupOperation should be merged with CreateFolderOperation IDEResourceInfoUtils#GROUP_TEXT org.eclipse.ui.wizards.datatransfer#ImportOperation#setCreateGroups Remy, if you see other related issues, please add a comment to the bug.
bundles/org.eclipse.ui.navigator.resources/src/org/eclipse/ui/navigator/resources/ResourceDropAdapterAssistant.java
import org.eclipse.swt.dnd.DropTargetEvent;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.CopyFilesAndFoldersOperation;
import org.eclipse.ui.actions.MoveFilesAndFoldersOperation;
import org.eclipse.ui.actions.ReadOnlyStateChecker;
import org.eclipse.ui.ide.dialogs.ImportTypeDialog;
import org.eclipse.ui.internal.navigator.Policy;
import org.eclipse.ui.internal.navigator.resources.plugin.WorkbenchNavigatorMessages;
import org.eclipse.ui.internal.navigator.resources.plugin.WorkbenchNavigatorPlugin;
import org.eclipse.ui.navigator.CommonDropAdapter;
import org.eclipse.ui.navigator.CommonDropAdapterAssistant;
import org.eclipse.ui.part.ResourceTransfer;
/**
 *  
 * Clients may reference this class in the <b>dropAssistant</b> element of a
 * <b>org.eclipse.ui.navigator.navigatorContent</b> extension point.
 * 
 * <p>
 * Clients may not extend or instantiate this class for any purpose.
 * Clients may have no direct dependencies on the contract of this class.
 * </p>
 * 
 * @since 3.2
 * 
 */ 
public class ResourceDropAdapterAssistant extends CommonDropAdapterAssistant {