Mercurial > jdk8-mips64-public > jaxws / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/Utils.java	Wed Apr 27 01:27:09 2016 +0800
     1.3 @@ -0,0 +1,94 @@
     1.4 +/*
     1.5 + * Copyright (c) 2013, 2014, 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.bind.v2.runtime;
    1.30 +
    1.31 +import com.sun.xml.internal.bind.v2.model.nav.Navigator;
    1.32 +
    1.33 +import java.lang.reflect.Field;
    1.34 +import java.lang.reflect.InvocationTargetException;
    1.35 +import java.lang.reflect.Method;
    1.36 +import java.lang.reflect.Type;
    1.37 +import java.security.AccessController;
    1.38 +import java.security.PrivilegedAction;
    1.39 +import java.util.logging.Level;
    1.40 +import java.util.logging.Logger;
    1.41 +
    1.42 +/**
    1.43 + * Utils class.
    1.44 + * Has *package private* access to avoid inappropriate usage.
    1.45 + */
    1.46 +final class Utils {
    1.47 +
    1.48 +    private static final Logger LOGGER = Logger.getLogger(Utils.class.getName());
    1.49 +
    1.50 +    /**
    1.51 +     * static ReflectionNavigator field to avoid usage of reflection every time we use it.
    1.52 +     */
    1.53 +    static final Navigator<Type, Class, Field, Method> REFLECTION_NAVIGATOR;
    1.54 +
    1.55 +    static { // we statically initializing REFLECTION_NAVIGATOR property
    1.56 +        try {
    1.57 +            Class refNav = Class.forName("com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator");
    1.58 +            //noinspection unchecked
    1.59 +            final Method getInstance = refNav.getDeclaredMethod("getInstance");
    1.60 +
    1.61 +            // requires accessClassInPackage privilege
    1.62 +            AccessController.doPrivileged(
    1.63 +                    new PrivilegedAction<Object>() {
    1.64 +                        @Override
    1.65 +                        public Object run() {
    1.66 +                            getInstance.setAccessible(true);
    1.67 +                            return null;
    1.68 +                        }
    1.69 +                    }
    1.70 +            );
    1.71 +
    1.72 +            //noinspection unchecked
    1.73 +            REFLECTION_NAVIGATOR = (Navigator<Type, Class, Field, Method>) getInstance.invoke(null);
    1.74 +        } catch (ClassNotFoundException e) {
    1.75 +            e.printStackTrace();
    1.76 +            throw new IllegalStateException("Can't find ReflectionNavigator class");
    1.77 +        } catch (InvocationTargetException e) {
    1.78 +            e.printStackTrace();
    1.79 +            throw new IllegalStateException("ReflectionNavigator.getInstance throws the exception");
    1.80 +        } catch (NoSuchMethodException e) {
    1.81 +            e.printStackTrace();
    1.82 +            throw new IllegalStateException("ReflectionNavigator.getInstance can't be found");
    1.83 +        } catch (IllegalAccessException e) {
    1.84 +            e.printStackTrace();
    1.85 +            throw new IllegalStateException("ReflectionNavigator.getInstance method is inaccessible");
    1.86 +        } catch (SecurityException e) {
    1.87 +            LOGGER.log(Level.FINE, "Unable to access ReflectionNavigator.getInstance", e);
    1.88 +            throw e;
    1.89 +        }
    1.90 +    }
    1.91 +
    1.92 +    /**
    1.93 +     * private constructor to avoid util class instantiating
    1.94 +     */
    1.95 +    private Utils() {
    1.96 +    }
    1.97 +}