src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Utils.java

Fri, 14 Feb 2014 10:53:55 +0100

author
mkos
date
Fri, 14 Feb 2014 10:53:55 +0100
changeset 514
29a761eaff0d
parent 450
b0c2840e2513
child 567
7d8cd27f1543
permissions
-rw-r--r--

8025030: Enhance stream handling
Summary: Avoiding caching data initialized via TCCL in static context; fix also reviewed by Iaroslav Savytskyi, Alexander Fomin
Reviewed-by: ahgross, mgrebac, skoivu

     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  */
    26 package com.sun.xml.internal.bind.v2.runtime;
    28 import com.sun.xml.internal.bind.v2.model.nav.Navigator;
    30 import java.lang.reflect.Field;
    31 import java.lang.reflect.InvocationTargetException;
    32 import java.lang.reflect.Method;
    33 import java.lang.reflect.Type;
    34 import java.util.logging.Level;
    35 import java.util.logging.Logger;
    37 /**
    38  * Utils class.
    39  * Has *package private* access to avoid inappropriate usage.
    40  */
    41 /* package */ final class Utils {
    43     private static final Logger LOGGER = Logger.getLogger(Utils.class.getName());
    45     /**
    46      * static ReflectionNavigator field to avoid usage of reflection every time we use it.
    47      */
    48     /* package */ static final Navigator<Type, Class, Field, Method> REFLECTION_NAVIGATOR;
    50     static { // we statically initializing REFLECTION_NAVIGATOR property
    51         Class refNav = null;
    52         try {
    53             refNav = Class.forName("com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator");
    54             //noinspection unchecked
    55             Method getInstance = refNav.getDeclaredMethod("getInstance");
    56             getInstance.setAccessible(true);
    57             //noinspection unchecked
    58             REFLECTION_NAVIGATOR = (Navigator<Type, Class, Field, Method>) getInstance.invoke(null);
    59         } catch (ClassNotFoundException e) {
    60             e.printStackTrace();
    61             throw new IllegalStateException("Can't find ReflectionNavigator class");
    62         } catch (InvocationTargetException e) {
    63             e.printStackTrace();
    64             throw new IllegalStateException("ReflectionNavigator.getInstance throws the exception");
    65         } catch (NoSuchMethodException e) {
    66             e.printStackTrace();
    67             throw new IllegalStateException("ReflectionNavigator.getInstance can't be found");
    68         } catch (IllegalAccessException e) {
    69             e.printStackTrace();
    70             throw new IllegalStateException("ReflectionNavigator.getInstance method is inaccessible");
    71         } catch (SecurityException e) {
    72             LOGGER.log(Level.FINE, "Unable to access ReflectionNavigator.getInstance", e);
    73             throw e;
    74         }
    75     }
    77     /**
    78      * private constructor to avoid util class instantiating
    79      */
    80     private Utils() {
    81     }
    82 }

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