+ added debugging method for unused imports

package de.ugoe.cs.swe.common;

import java.util.Collection;

import java.util.Map;

import java.util.Queue;

import java.util.Set;

import org.eclipse.emf.ecore.EObject;

import org.eclipse.emf.ecore.EReference;

import org.eclipse.emf.ecore.EStructuralFeature.Setting;

import org.eclipse.emf.ecore.util.EcoreUtil;

import org.eclipse.emf.ecore.util.InternalEList;

import com.google.common.collect.Lists;

		return false;

	}

	@SuppressWarnings("unchecked")

	//use for debugging only, should be generally slower 

	public static boolean isReferenced3(EObject rootElement, Set<? extends EObject> targets) {

		Map<EObject, Collection<Setting>> results = EcoreUtil.UsageCrossReferencer.findAll(targets, rootElement);

		for (EObject o : results.keySet()) {

			System.out.println(o + " -> "); 

			for (Setting s : results.get(o)) {

				System.out.println("    "+s.getEStructuralFeature());

			}

		}

		return results.size()>0;

	}

	@SuppressWarnings("unchecked")

	public static boolean isReferenced2(EObject rootElement, Set<? extends EObject> targets) {

		boolean found = false;