jdk/src/java.base/share/classes/sun/misc/JavaLangAccess.java
changeset 32916 21a06d94b53b
parent 32915 eb290482d42f
parent 32906 ee125f62429b
child 32917 8392405ab038
equal deleted inserted replaced
32915:eb290482d42f 32916:21a06d94b53b
     1 /*
       
     2  * Copyright (c) 2003, 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 sun.misc;
       
    27 
       
    28 import java.lang.annotation.Annotation;
       
    29 import java.lang.reflect.Executable;
       
    30 import java.security.AccessControlContext;
       
    31 import java.util.Map;
       
    32 
       
    33 import sun.reflect.ConstantPool;
       
    34 import sun.reflect.annotation.AnnotationType;
       
    35 import sun.nio.ch.Interruptible;
       
    36 
       
    37 public interface JavaLangAccess {
       
    38     /** Return the constant pool for a class. */
       
    39     ConstantPool getConstantPool(Class<?> klass);
       
    40 
       
    41     /**
       
    42      * Compare-And-Swap the AnnotationType instance corresponding to this class.
       
    43      * (This method only applies to annotation types.)
       
    44      */
       
    45     boolean casAnnotationType(Class<?> klass, AnnotationType oldType, AnnotationType newType);
       
    46 
       
    47     /**
       
    48      * Get the AnnotationType instance corresponding to this class.
       
    49      * (This method only applies to annotation types.)
       
    50      */
       
    51     AnnotationType getAnnotationType(Class<?> klass);
       
    52 
       
    53     /**
       
    54      * Get the declared annotations for a given class, indexed by their types.
       
    55      */
       
    56     Map<Class<? extends Annotation>, Annotation> getDeclaredAnnotationMap(Class<?> klass);
       
    57 
       
    58     /**
       
    59      * Get the array of bytes that is the class-file representation
       
    60      * of this Class' annotations.
       
    61      */
       
    62     byte[] getRawClassAnnotations(Class<?> klass);
       
    63 
       
    64     /**
       
    65      * Get the array of bytes that is the class-file representation
       
    66      * of this Class' type annotations.
       
    67      */
       
    68     byte[] getRawClassTypeAnnotations(Class<?> klass);
       
    69 
       
    70     /**
       
    71      * Get the array of bytes that is the class-file representation
       
    72      * of this Executable's type annotations.
       
    73      */
       
    74     byte[] getRawExecutableTypeAnnotations(Executable executable);
       
    75 
       
    76     /**
       
    77      * Returns the elements of an enum class or null if the
       
    78      * Class object does not represent an enum type;
       
    79      * the result is uncloned, cached, and shared by all callers.
       
    80      */
       
    81     <E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass);
       
    82 
       
    83     /** Set thread's blocker field. */
       
    84     void blockedOn(Thread t, Interruptible b);
       
    85 
       
    86     /**
       
    87      * Registers a shutdown hook.
       
    88      *
       
    89      * It is expected that this method with registerShutdownInProgress=true
       
    90      * is only used to register DeleteOnExitHook since the first file
       
    91      * may be added to the delete on exit list by the application shutdown
       
    92      * hooks.
       
    93      *
       
    94      * @param slot  the slot in the shutdown hook array, whose element
       
    95      *              will be invoked in order during shutdown
       
    96      * @param registerShutdownInProgress true to allow the hook
       
    97      *        to be registered even if the shutdown is in progress.
       
    98      * @param hook  the hook to be registered
       
    99      *
       
   100      * @throws IllegalStateException if shutdown is in progress and
       
   101      *         the slot is not valid to register.
       
   102      */
       
   103     void registerShutdownHook(int slot, boolean registerShutdownInProgress, Runnable hook);
       
   104 
       
   105     /**
       
   106      * Returns the number of stack frames represented by the given throwable.
       
   107      */
       
   108     int getStackTraceDepth(Throwable t);
       
   109 
       
   110     /**
       
   111      * Returns the ith StackTraceElement for the given throwable.
       
   112      */
       
   113     StackTraceElement getStackTraceElement(Throwable t, int i);
       
   114 
       
   115     /**
       
   116      * Returns a new string backed by the provided character array. The
       
   117      * character array is not copied and must never be modified after the
       
   118      * String is created, in order to fulfill String's contract.
       
   119      *
       
   120      * @param chars the character array to back the string
       
   121      * @return a newly created string whose content is the character array
       
   122      */
       
   123     String newStringUnsafe(char[] chars);
       
   124 
       
   125     /**
       
   126      * Returns a new Thread with the given Runnable and an
       
   127      * inherited AccessControlContext.
       
   128      */
       
   129     Thread newThreadWithAcc(Runnable target, AccessControlContext acc);
       
   130 
       
   131     /**
       
   132      * Invokes the finalize method of the given object.
       
   133      */
       
   134     void invokeFinalize(Object o) throws Throwable;
       
   135 
       
   136     /**
       
   137      * Invokes Long.formatUnsignedLong(long val, int shift, char[] buf, int offset, int len)
       
   138      */
       
   139     void formatUnsignedLong(long val, int shift, char[] buf, int offset, int len);
       
   140 
       
   141     /**
       
   142      * Invokes Integer.formatUnsignedInt(long val, int shift, char[] buf, int offset, int len)
       
   143      */
       
   144     void formatUnsignedInt(int val, int shift, char[] buf, int offset, int len);
       
   145 }