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diff --git a/src/org/apache/http/client/utils/CloneUtils.java b/src/org/apache/http/client/utils/CloneUtils.java
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+/*
+ * $HeadURL:$
+ * $Revision:$
+ * $Date:$
+ *
+ * ====================================================================
+ *
+ * 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() {
+ }
+
+}