1/*
2 * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.xml.internal.ws.policy.privateutil;
27
28import java.lang.reflect.InvocationTargetException;
29import java.lang.reflect.Method;
30import java.util.logging.Level;
31import java.util.logging.Logger;
32
33/**
34 * Utility class to invoke com.sun.xml.internal.ws.policy.util.MethodUtil.invoke() if available. If not (other then Oracle JDK) fallbacks
35 * to java.lang,reflect.Method.invoke()
36 */
37class MethodUtil {
38
39    private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName());
40
41    static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException {
42        if (LOGGER.isLoggable(Level.FINE)) {
43            LOGGER.log(Level.FINE, "Invoking method using com.sun.xml.internal.ws.policy.util.MethodUtil");
44        }
45        try {
46            return com.sun.xml.internal.ws.policy.util.MethodUtil.invoke(method, target, args);
47        } catch (InvocationTargetException ite) {
48            // unwrap invocation exception added by reflection code ...
49            throw unwrapException(ite);
50        }
51    }
52
53    private static InvocationTargetException unwrapException(InvocationTargetException ite) {
54        Throwable targetException = ite.getTargetException();
55        if (targetException != null && targetException instanceof InvocationTargetException) {
56            if (LOGGER.isLoggable(Level.FINE)) {
57                LOGGER.log(Level.FINE, "Unwrapping invocation target exception");
58            }
59            return (InvocationTargetException) targetException;
60        } else {
61            return ite;
62        }
63    }
64
65}
66