src/share/jaxws_classes/com/sun/xml/internal/ws/client/sei/MethodUtil.java

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.xml.internal.ws.client.sei;
aoqi@0 27
aoqi@0 28 import java.lang.reflect.InvocationTargetException;
aoqi@0 29 import java.lang.reflect.Method;
aoqi@0 30 import java.util.logging.Level;
aoqi@0 31 import java.util.logging.Logger;
aoqi@0 32
aoqi@0 33 /**
aoqi@0 34 * Utility class to invoke sun.reflect.misc.MethodUtil.invoke() if available. If not (other then Oracle JDK) fallbacks
aoqi@0 35 * to java.lang,reflect.Method.invoke()
aoqi@0 36 * <p/>
aoqi@0 37 * Be careful, copy of this class exists in several packages, iny modification must be done to other copies too!
aoqi@0 38 */
aoqi@0 39 class MethodUtil {
aoqi@0 40
aoqi@0 41 private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName());
aoqi@0 42 private static final Method INVOKE_METHOD;
aoqi@0 43
aoqi@0 44 static {
aoqi@0 45 Method method;
aoqi@0 46 try {
aoqi@0 47 Class<?> clazz = Class.forName("sun.reflect.misc.MethodUtil");
aoqi@0 48 method = clazz.getMethod("invoke", Method.class, Object.class, Object[].class);
aoqi@0 49 if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0 50 LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil found; it will be used to invoke methods.");
aoqi@0 51 }
aoqi@0 52 } catch (Throwable t) {
aoqi@0 53 method = null;
aoqi@0 54 if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0 55 LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil not found, probably non-Oracle JVM");
aoqi@0 56 }
aoqi@0 57 }
aoqi@0 58 INVOKE_METHOD = method;
aoqi@0 59 }
aoqi@0 60
aoqi@0 61 static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException {
aoqi@0 62 if (INVOKE_METHOD != null) {
aoqi@0 63 // sun.reflect.misc.MethodUtil.invoke(method, owner, args)
aoqi@0 64 if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0 65 LOGGER.log(Level.FINE, "Invoking method using sun.reflect.misc.MethodUtil");
aoqi@0 66 }
aoqi@0 67 try {
aoqi@0 68 return INVOKE_METHOD.invoke(null, method, target, args);
aoqi@0 69 } catch (InvocationTargetException ite) {
aoqi@0 70 // unwrap invocation exception added by reflection code ...
aoqi@0 71 throw unwrapException(ite);
aoqi@0 72 }
aoqi@0 73 } else {
aoqi@0 74 // other then Oracle JDK ...
aoqi@0 75 if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0 76 LOGGER.log(Level.FINE, "Invoking method directly, probably non-Oracle JVM");
aoqi@0 77 }
aoqi@0 78 return method.invoke(target, args);
aoqi@0 79 }
aoqi@0 80 }
aoqi@0 81
aoqi@0 82 private static InvocationTargetException unwrapException(InvocationTargetException ite) {
aoqi@0 83 Throwable targetException = ite.getTargetException();
aoqi@0 84 if (targetException != null && targetException instanceof InvocationTargetException) {
aoqi@0 85 if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0 86 LOGGER.log(Level.FINE, "Unwrapping invocation target exception");
aoqi@0 87 }
aoqi@0 88 return (InvocationTargetException) targetException;
aoqi@0 89 } else {
aoqi@0 90 return ite;
aoqi@0 91 }
aoqi@0 92 }
aoqi@0 93
aoqi@0 94 }

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