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
}
	private void copyFileStores(final IFileStore[] stores,
			final IPath destinationPath, IProgressMonitor monitor) {
		
		IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
		if (root.exists(destinationPath)) {
			IContainer container = (IContainer) root
					.findMember(destinationPath);
			performFileImport(stores, container, monitor);
		}
	}
	/**
	 * Returns the model provider ids that are known to the client that
	 * instantiated this operation.
	 * 
	 * @return the model provider ids that are known to the client that
	 *         instantiated this operation.
	 * @since 3.2
	 */
	public String[] getModelProviderIds() {
		return modelProviderIds;
	}
	/**
	 * Sets the model provider ids that are known to the client that
	 * instantiated this operation. Any potential side effects reported by these
	 * models during validation will be ignored.
	 * 
	 * @param modelProviderIds
	 *            the model providers known to the client who is using this
	 *            operation.