Bug 296691 Change new Groups API to Virtual Resource API
If we decide that 'virtual' is the right naming for new resources concept, I will make the following changes. Add IResource#VIRTUAL flag to use in #create methods Add IResource#isVirtual indicating that a resource is virtual Remove IResource#isGroup Remove IFolder#createGroup
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
* @param monitor
	 *            the monitor that information will be sent to.
	 * @see WorkspaceModifyOperation
	 * @see WorkspaceJob
	 * @since 3.2
	 */
	public void copyFilesInCurrentThread(URI[] uris, IContainer destination,
			IProgressMonitor monitor) {
		IFileStore[] stores = buildFileStores(uris);
		if (stores == null) {
			return;
		}
		copyFileStores(destination, stores, false, monitor);
	}
	/**
	 * Build the collection of fileStores that map to fileNames. If any of them
	 * cannot be found then match then return <code>null</code>.
	 * 
	 * @param uris
	 * @return IFileStore[]
	 */
	private IFileStore[] buildFileStores(URI[] uris) {
		IFileStore[] stores = new IFileStore[uris.length];
		for (int i = 0; i < uris.length; i++) {
			IFileStore store;
			try {
				store = EFS.getStore(uris[i]);
			} catch (CoreException e) {
				StatusManager.getManager().handle(e, IDEWorkbenchPlugin.IDE_WORKBENCH);
				reportFileInfoNotFound(uris[i].toString());