| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.wink.jcdi.server.internal.util; |
| |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| |
| //abstract class won't end up as cdi-bean |
| //see org.apache.deltaspike.core.util.ClassUtils |
| public abstract class ClassUtils { |
| /** |
| * Constructor which prevents the instantiation of this class |
| */ |
| private ClassUtils() { |
| // prevent instantiation |
| } |
| |
| public static ClassLoader getClassLoader(Object o) { |
| if (System.getSecurityManager() != null) { |
| return AccessController.doPrivileged(new GetClassLoaderAction(o)); |
| } else { |
| return getClassLoaderInternal(o); |
| } |
| } |
| |
| static class GetClassLoaderAction implements PrivilegedAction<ClassLoader> { |
| private Object object; |
| |
| GetClassLoaderAction(Object object) { |
| this.object = object; |
| } |
| |
| public ClassLoader run() { |
| try { |
| return getClassLoaderInternal(object); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| } |
| |
| private static ClassLoader getClassLoaderInternal(Object o) { |
| ClassLoader loader = Thread.currentThread().getContextClassLoader(); |
| |
| if (loader == null && o != null) { |
| loader = o.getClass().getClassLoader(); |
| } |
| |
| if (loader == null) { |
| loader = ClassUtils.class.getClassLoader(); |
| } |
| |
| return loader; |
| } |
| } |