1 /* 2 * Copyright (c) 2003, 2006, 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.security.AccessControlContext; 29 import sun.reflect.ConstantPool; 30 import sun.reflect.annotation.AnnotationType; 31 import sun.nio.ch.Interruptible; 32 33 public interface JavaLangAccess { 34 /** Return the constant pool for a class. */ 35 ConstantPool getConstantPool(Class klass); 36 37 /** 38 * Set the AnnotationType instance corresponding to this class. 39 * (This method only applies to annotation types.) 40 */ 41 void setAnnotationType(Class klass, AnnotationType annotationType); 42 43 /** 44 * Get the AnnotationType instance corresponding to this class. 45 * (This method only applies to annotation types.) 46 */ 47 AnnotationType getAnnotationType(Class klass); 48 49 /** 50 * Returns the elements of an enum class or null if the 51 * Class object does not represent an enum type; 52 * the result is uncloned, cached, and shared by all callers. 53 */ 54 <E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass); 55 56 /** Set thread's blocker field. */ 57 void blockedOn(Thread t, Interruptible b); 58 59 /** 60 * Registers a shutdown hook. 61 * 62 * It is expected that this method with registerShutdownInProgress=true 63 * is only used to register DeleteOnExitHook since the first file 64 * may be added to the delete on exit list by the application shutdown 65 * hooks. 66 * 67 * @params slot the slot in the shutdown hook array, whose element 68 * will be invoked in order during shutdown 69 * @params registerShutdownInProgress true to allow the hook 70 * to be registered even if the shutdown is in progress. 71 * @params hook the hook to be registered 72 * 73 * @throw IllegalStateException if shutdown is in progress and 74 * the slot is not valid to register. 75 */ 76 void registerShutdownHook(int slot, boolean registerShutdownInProgress, Runnable hook); 77 78 /** 79 * Returns the number of stack frames represented by the given throwable. 80 */ 81 int getStackTraceDepth(Throwable t); 82 83 /** 84 * Returns the ith StackTraceElement for the given throwable. 85 */ 86 StackTraceElement getStackTraceElement(Throwable t, int i); 87 88 /** 89 * Returns the murmur hash value for the specified String. 90 */ 91 int getStringHash32(String string); 92 93 /** 94 * Returns a new Thread with the given Runnable and an 95 * inherited AccessControlContext. 96 */ 97 Thread newThreadWithAcc(Runnable target, AccessControlContext acc); 98 99 /** 100 * Invokes the finalize method of the given object. 101 */ 102 void invokeFinalize(Object o) throws Throwable; 103 }