| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /** |
| * 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 com.sun.org.apache.xml.internal.security.keys.keyresolver; |
| |
| // NOTE! This is a duplicate of utils.ClassLoaderUtils with public |
| // modifiers changed to package-private. Make sure to integrate any future |
| // changes to utils.ClassLoaderUtils to this file. |
| final class ClassLoaderUtils { |
| |
| private static final com.sun.org.slf4j.internal.Logger LOG = |
| com.sun.org.slf4j.internal.LoggerFactory.getLogger(ClassLoaderUtils.class); |
| |
| private ClassLoaderUtils() { |
| } |
| |
| /** |
| * Load a class with a given name. <p></p> It will try to load the class in the |
| * following order: |
| * <ul> |
| * <li>From Thread.currentThread().getContextClassLoader() |
| * <li>Using the basic Class.forName() |
| * <li>From ClassLoaderUtil.class.getClassLoader() |
| * <li>From the callingClass.getClassLoader() |
| * </ul> |
| * |
| * @param className The name of the class to load |
| * @param callingClass The Class object of the calling object |
| * @throws ClassNotFoundException If the class cannot be found anywhere. |
| */ |
| static Class<?> loadClass(String className, Class<?> callingClass) |
| throws ClassNotFoundException { |
| try { |
| ClassLoader cl = Thread.currentThread().getContextClassLoader(); |
| |
| if (cl != null) { |
| return cl.loadClass(className); |
| } |
| } catch (ClassNotFoundException e) { |
| LOG.debug(e.getMessage(), e); |
| //ignore |
| } |
| return loadClass2(className, callingClass); |
| } |
| |
| private static Class<?> loadClass2(String className, Class<?> callingClass) |
| throws ClassNotFoundException { |
| try { |
| return Class.forName(className); |
| } catch (ClassNotFoundException ex) { |
| try { |
| if (ClassLoaderUtils.class.getClassLoader() != null) { |
| return ClassLoaderUtils.class.getClassLoader().loadClass(className); |
| } |
| } catch (ClassNotFoundException exc) { |
| if (callingClass != null && callingClass.getClassLoader() != null) { |
| return callingClass.getClassLoader().loadClass(className); |
| } |
| } |
| LOG.debug(ex.getMessage(), ex); |
| throw ex; |
| } |
| } |
| } |