| /* |
| * $HeadURL:$ |
| * $Revision:$ |
| * $Date:$ |
| * |
| * ==================================================================== |
| * |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.http.client.utils; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| /** |
| * A collection of utilities to workaround limitations of Java clone framework. |
| */ |
| public class CloneUtils { |
| |
| public static Object clone(final Object obj) throws CloneNotSupportedException { |
| if (obj == null) { |
| return null; |
| } |
| if (obj instanceof Cloneable) { |
| Class<?> clazz = obj.getClass (); |
| Method m; |
| try { |
| m = clazz.getMethod("clone", (Class[]) null); |
| } catch (NoSuchMethodException ex) { |
| throw new NoSuchMethodError(ex.getMessage()); |
| } |
| try { |
| return m.invoke(obj, (Object []) null); |
| } catch (InvocationTargetException ex) { |
| Throwable cause = ex.getCause(); |
| if (cause instanceof CloneNotSupportedException) { |
| throw ((CloneNotSupportedException) cause); |
| } else { |
| throw new Error("Unexpected exception", cause); |
| } |
| } catch (IllegalAccessException ex) { |
| throw new IllegalAccessError(ex.getMessage()); |
| } |
| } else { |
| throw new CloneNotSupportedException(); |
| } |
| } |
| |
| /** |
| * This class should not be instantiated. |
| */ |
| private CloneUtils() { |
| } |
| |
| } |