1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/policy/privateutil/MethodUtil.java Wed Apr 27 01:27:09 2016 +0800 1.3 @@ -0,0 +1,92 @@ 1.4 +/* 1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. Oracle designates this 1.11 + * particular file as subject to the "Classpath" exception as provided 1.12 + * by Oracle in the LICENSE file that accompanied this code. 1.13 + * 1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.17 + * version 2 for more details (a copy is included in the LICENSE file that 1.18 + * accompanied this code). 1.19 + * 1.20 + * You should have received a copy of the GNU General Public License version 1.21 + * 2 along with this work; if not, write to the Free Software Foundation, 1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.23 + * 1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.25 + * or visit www.oracle.com if you need additional information or have any 1.26 + * questions. 1.27 + */ 1.28 + 1.29 +package com.sun.xml.internal.ws.policy.privateutil; 1.30 + 1.31 +import java.lang.reflect.InvocationTargetException; 1.32 +import java.lang.reflect.Method; 1.33 +import java.util.logging.Level; 1.34 +import java.util.logging.Logger; 1.35 + 1.36 +/** 1.37 + * Utility class to invoke sun.reflect.misc.MethodUtil.invoke() if available. If not (other then Oracle JDK) fallbacks 1.38 + * to java.lang,reflect.Method.invoke() 1.39 + */ 1.40 +class MethodUtil { 1.41 + 1.42 + private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName()); 1.43 + private static final Method INVOKE_METHOD; 1.44 + 1.45 + static { 1.46 + Method method; 1.47 + try { 1.48 + Class<?> clazz = Class.forName("sun.reflect.misc.MethodUtil"); 1.49 + method = clazz.getMethod("invoke", Method.class, Object.class, Object[].class); 1.50 + if (LOGGER.isLoggable(Level.FINE)) { 1.51 + LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil found; it will be used to invoke methods."); 1.52 + } 1.53 + } catch (Throwable t) { 1.54 + method = null; 1.55 + if (LOGGER.isLoggable(Level.FINE)) { 1.56 + LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil not found, probably non-Oracle JVM"); 1.57 + } 1.58 + } 1.59 + INVOKE_METHOD = method; 1.60 + } 1.61 + 1.62 + static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException { 1.63 + if (INVOKE_METHOD != null) { 1.64 + // sun.reflect.misc.MethodUtil.invoke(method, owner, args) 1.65 + if (LOGGER.isLoggable(Level.FINE)) { 1.66 + LOGGER.log(Level.FINE, "Invoking method using sun.reflect.misc.MethodUtil"); 1.67 + } 1.68 + try { 1.69 + return INVOKE_METHOD.invoke(null, method, target, args); 1.70 + } catch (InvocationTargetException ite) { 1.71 + // unwrap invocation exception added by reflection code ... 1.72 + throw unwrapException(ite); 1.73 + } 1.74 + } else { 1.75 + // other then Oracle JDK ... 1.76 + if (LOGGER.isLoggable(Level.FINE)) { 1.77 + LOGGER.log(Level.FINE, "Invoking method directly, probably non-Oracle JVM"); 1.78 + } 1.79 + return method.invoke(target, args); 1.80 + } 1.81 + } 1.82 + 1.83 + private static InvocationTargetException unwrapException(InvocationTargetException ite) { 1.84 + Throwable targetException = ite.getTargetException(); 1.85 + if (targetException != null && targetException instanceof InvocationTargetException) { 1.86 + if (LOGGER.isLoggable(Level.FINE)) { 1.87 + LOGGER.log(Level.FINE, "Unwrapping invocation target exception"); 1.88 + } 1.89 + return (InvocationTargetException) targetException; 1.90 + } else { 1.91 + return ite; 1.92 + } 1.93 + } 1.94 + 1.95 +}