| /* |
| * 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.catalina.loader; |
| |
| import org.apache.catalina.LifecycleException; |
| |
| public class ParallelWebappClassLoader extends WebappClassLoaderBase { |
| |
| private static final org.apache.juli.logging.Log log = |
| org.apache.juli.logging.LogFactory.getLog(ParallelWebappClassLoader.class); |
| |
| static { |
| boolean result = ClassLoader.registerAsParallelCapable(); |
| if (!result) { |
| log.warn(sm.getString("webappClassLoaderParallel.registrationFailed")); |
| } |
| } |
| |
| public ParallelWebappClassLoader() { |
| super(); |
| } |
| |
| |
| public ParallelWebappClassLoader(ClassLoader parent) { |
| super(parent); |
| } |
| |
| |
| /** |
| * Returns a copy of this class loader without any class file |
| * transformers. This is a tool often used by Java Persistence API |
| * providers to inspect entity classes in the absence of any |
| * instrumentation, something that can't be guaranteed within the |
| * context of a {@link java.lang.instrument.ClassFileTransformer}'s |
| * {@link java.lang.instrument.ClassFileTransformer#transform(ClassLoader, |
| * String, Class, java.security.ProtectionDomain, byte[]) transform} method. |
| * <p> |
| * The returned class loader's resource cache will have been cleared |
| * so that classes already instrumented will not be retained or |
| * returned. |
| * |
| * @return the transformer-free copy of this class loader. |
| */ |
| @Override |
| public ParallelWebappClassLoader copyWithoutTransformers() { |
| |
| ParallelWebappClassLoader result = new ParallelWebappClassLoader(getParent()); |
| |
| super.copyStateWithoutTransformers(result); |
| |
| try { |
| result.start(); |
| } catch (LifecycleException e) { |
| throw new IllegalStateException(e); |
| } |
| |
| return result; |
| } |
| } |