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