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src/share/jaxws_classes/com/sun/xml/internal/ws/policy/privateutil/MethodUtil.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/policy/privateutil/MethodUtil.java

Thu, 12 Oct 2017 19:44:07 +0800

author

aoqi

date

Thu, 12 Oct 2017 19:44:07 +0800

changeset 760

e530533619ec

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.policy.privateutil;
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	*/
aoqi@0	37	class MethodUtil {
aoqi@0	38
aoqi@0	39	private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName());
aoqi@0	40	private static final Method INVOKE_METHOD;
aoqi@0	41
aoqi@0	42	static {
aoqi@0	43	Method method;
aoqi@0	44	try {
aoqi@0	45	Class<?> clazz = Class.forName("sun.reflect.misc.MethodUtil");
aoqi@0	46	method = clazz.getMethod("invoke", Method.class, Object.class, Object[].class);
aoqi@0	47	if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0	48	LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil found; it will be used to invoke methods.");
aoqi@0	49	}
aoqi@0	50	} catch (Throwable t) {
aoqi@0	51	method = null;
aoqi@0	52	if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0	53	LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil not found, probably non-Oracle JVM");
aoqi@0	54	}
aoqi@0	55	}
aoqi@0	56	INVOKE_METHOD = method;
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException {
aoqi@0	60	if (INVOKE_METHOD != null) {
aoqi@0	61	// sun.reflect.misc.MethodUtil.invoke(method, owner, args)
aoqi@0	62	if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0	63	LOGGER.log(Level.FINE, "Invoking method using sun.reflect.misc.MethodUtil");
aoqi@0	64	}
aoqi@0	65	try {
aoqi@0	66	return INVOKE_METHOD.invoke(null, method, target, args);
aoqi@0	67	} catch (InvocationTargetException ite) {
aoqi@0	68	// unwrap invocation exception added by reflection code ...
aoqi@0	69	throw unwrapException(ite);
aoqi@0	70	}
aoqi@0	71	} else {
aoqi@0	72	// other then Oracle JDK ...
aoqi@0	73	if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0	74	LOGGER.log(Level.FINE, "Invoking method directly, probably non-Oracle JVM");
aoqi@0	75	}
aoqi@0	76	return method.invoke(target, args);
aoqi@0	77	}
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	private static InvocationTargetException unwrapException(InvocationTargetException ite) {
aoqi@0	81	Throwable targetException = ite.getTargetException();
aoqi@0	82	if (targetException != null && targetException instanceof InvocationTargetException) {
aoqi@0	83	if (LOGGER.isLoggable(Level.FINE)) {
aoqi@0	84	LOGGER.log(Level.FINE, "Unwrapping invocation target exception");
aoqi@0	85	}
aoqi@0	86	return (InvocationTargetException) targetException;
aoqi@0	87	} else {
aoqi@0	88	return ite;
aoqi@0	89	}
aoqi@0	90	}
aoqi@0	91
aoqi@0	92	}