import org.simantics.diagram.symbollibrary.ISymbolGroup;
import org.simantics.diagram.symbollibrary.ISymbolItem;
import org.simantics.layer0.Layer0;
import org.simantics.diagram.symbollibrary.ISymbolGroup;
import org.simantics.diagram.symbollibrary.ISymbolItem;
import org.simantics.layer0.Layer0;
Collections.sort(items, new Comparator<ISymbolItem>() {
@Override
public int compare(ISymbolItem o1, ISymbolItem o2) {
Collections.sort(items, new Comparator<ISymbolItem>() {
@Override
public int compare(ISymbolItem o1, ISymbolItem o2) {