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83 lines
2.8 KiB
Java
83 lines
2.8 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.util;
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import java.lang.reflect.Method;
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/**
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* The home for utility methods that handle various exception-related tasks.
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*
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*
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* @since 4.0
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*
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* @deprecated (4.2) no longer used
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*/
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@Deprecated
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public final class ExceptionUtils {
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/** A reference to Throwable's initCause method, or null if it's not there in this JVM */
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static private final Method INIT_CAUSE_METHOD = getInitCauseMethod();
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/**
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* Returns a <code>Method<code> allowing access to
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* {@link Throwable#initCause(Throwable) initCause} method of {@link Throwable},
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* or <code>null</code> if the method
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* does not exist.
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*
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* @return A <code>Method<code> for <code>Throwable.initCause</code>, or
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* <code>null</code> if unavailable.
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*/
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static private Method getInitCauseMethod() {
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try {
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final Class<?>[] paramsClasses = new Class[] { Throwable.class };
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return Throwable.class.getMethod("initCause", paramsClasses);
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} catch (final NoSuchMethodException e) {
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return null;
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}
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}
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/**
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* If we're running on JDK 1.4 or later, initialize the cause for the given throwable.
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*
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* @param throwable The throwable.
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* @param cause The cause of the throwable.
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*/
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public static void initCause(final Throwable throwable, final Throwable cause) {
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if (INIT_CAUSE_METHOD != null) {
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try {
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INIT_CAUSE_METHOD.invoke(throwable, cause);
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} catch (final Exception e) {
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// Well, with no logging, the only option is to munch the exception
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}
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}
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}
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private ExceptionUtils() {
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}
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}
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