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

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   1 /*
   2  * Copyright (c) 2013, 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 
  26 package com.sun.xml.internal.ws.client.sei;
  27 
  28 import java.lang.reflect.InvocationTargetException;
  29 import java.lang.reflect.Method;
  30 import java.util.logging.Level;
  31 import java.util.logging.Logger;
  32 
  33 /**
  34  * Utility class to invoke sun.reflect.misc.MethodUtil.invoke() if available. If not (other then Oracle JDK) fallbacks
  35  * to java.lang,reflect.Method.invoke()
  36  * <p/>
  37  * Be careful, copy of this class exists in several packages, iny modification must be done to other copies too!
  38  */
  39 class MethodUtil {
  40 
  41     private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName());
  42     private static final Method INVOKE_METHOD;
  43 
  44     static {
  45         Method method;
  46         try {
  47             Class<?> clazz = Class.forName("sun.reflect.misc.MethodUtil");
  48             method = clazz.getMethod("invoke", Method.class, Object.class, Object[].class);
  49             if (LOGGER.isLoggable(Level.FINE)) {
  50                 LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil found; it will be used to invoke methods.");
  51             }
  52         } catch (Throwable t) {
  53             method = null;
  54             if (LOGGER.isLoggable(Level.FINE)) {
  55                 LOGGER.log(Level.FINE, "Class sun.reflect.misc.MethodUtil not found, probably non-Oracle JVM");
  56             }
  57         }
  58         INVOKE_METHOD = method;
  59     }
  60 
  61     static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException {
  62         if (INVOKE_METHOD != null) {
  63             // sun.reflect.misc.MethodUtil.invoke(method, owner, args)
  64             if (LOGGER.isLoggable(Level.FINE)) {
  65                 LOGGER.log(Level.FINE, "Invoking method using sun.reflect.misc.MethodUtil");
  66             }
  67             try {
  68                 return INVOKE_METHOD.invoke(null, method, target, args);
  69             } catch (InvocationTargetException ite) {
  70                 // unwrap invocation exception added by reflection code ...
  71                 throw unwrapException(ite);
  72             }
  73         } else {
  74             // other then Oracle JDK ...
  75             if (LOGGER.isLoggable(Level.FINE)) {
  76                 LOGGER.log(Level.FINE, "Invoking method directly, probably non-Oracle JVM");
  77             }
  78             return method.invoke(target, args);
  79         }
  80     }
  81 
  82     private static InvocationTargetException unwrapException(InvocationTargetException ite) {
  83         Throwable targetException = ite.getTargetException();
  84         if (targetException != null && targetException instanceof InvocationTargetException) {
  85             if (LOGGER.isLoggable(Level.FINE)) {
  86                 LOGGER.log(Level.FINE, "Unwrapping invocation target exception");
  87             }
  88             return (InvocationTargetException) targetException;
  89         } else {
  90             return ite;
  91         }
  92     }
  93 
  94 }
   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 
  26 package com.sun.xml.internal.ws.client.sei;
  27 
  28 import java.lang.reflect.InvocationTargetException;
  29 import java.lang.reflect.Method;
  30 import java.util.logging.Level;
  31 import java.util.logging.Logger;
  32 
  33 /**
  34  * Utility class to invoke sun.reflect.misc.MethodUtil.invoke() if available. If not (other then Oracle JDK) fallbacks
  35  * to java.lang,reflect.Method.invoke()
  36  * <p/>
  37  * Be careful, copy of this class exists in several packages, iny modification must be done to other copies too!
  38  */
  39 class MethodUtil {
  40 
  41     private static final Logger LOGGER = Logger.getLogger(MethodUtil.class.getName());


















  42 
  43     static Object invoke(Object target, Method method, Object[] args) throws IllegalAccessException, InvocationTargetException {
  44         // com.sun.xml.internal.ws.util.MethodUtil.invoke(method, owner, args)

  45         if (LOGGER.isLoggable(Level.FINE)) {
  46             LOGGER.log(Level.FINE, "Invoking method using sun.reflect.misc.MethodUtil");
  47         }
  48         try {
  49             return com.sun.xml.internal.ws.util.MethodUtil.invoke(method, target, args);
  50         } catch (InvocationTargetException ite) {
  51             // unwrap invocation exception added by reflection code ...
  52             throw unwrapException(ite);







  53         }
  54     }
  55 
  56     private static InvocationTargetException unwrapException(InvocationTargetException ite) {
  57         Throwable targetException = ite.getTargetException();
  58         if (targetException != null && targetException instanceof InvocationTargetException) {
  59             if (LOGGER.isLoggable(Level.FINE)) {
  60                 LOGGER.log(Level.FINE, "Unwrapping invocation target exception");
  61             }
  62             return (InvocationTargetException) targetException;
  63         } else {
  64             return ite;
  65         }
  66     }
  67 
  68 }
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