/*

 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.misc;

import java.lang.annotation.Annotation;

import java.lang.reflect.Executable;

import sun.reflect.ConstantPool;

import sun.reflect.annotation.AnnotationType;

import sun.nio.ch.Interruptible;

public interface JavaLangAccess {

    /** Return the constant pool for a class. */

    ConstantPool getConstantPool(Class<?> klass);

    /**

     * (This method only applies to annotation types.)

     */

    /**

     * Get the AnnotationType instance corresponding to this class.

     * (This method only applies to annotation types.)

     */

    AnnotationType getAnnotationType(Class<?> klass);

    /**

     * Get the array of bytes that is the class-file representation

     * of this Class' type annotations.

     */

    byte[] getRawClassTypeAnnotations(Class<?> klass);

    /**

     * Get the array of bytes that is the class-file representation

     * of this Executable's type annotations.

     */

    byte[] getRawExecutableTypeAnnotations(Executable executable);

    /**

     * Returns the elements of an enum class or null if the

     * Class object does not represent an enum type;

     * the result is uncloned, cached, and shared by all callers.

     */

    <E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass);

    /** Set thread's blocker field. */

    void blockedOn(Thread t, Interruptible b);

    /**

     * Registers a shutdown hook.

     *

     * It is expected that this method with registerShutdownInProgress=true

     * is only used to register DeleteOnExitHook since the first file

     * may be added to the delete on exit list by the application shutdown

     * hooks.

     *

     * @params slot  the slot in the shutdown hook array, whose element

     *               will be invoked in order during shutdown

     * @params registerShutdownInProgress true to allow the hook

     *               to be registered even if the shutdown is in progress.

     * @params hook  the hook to be registered

     *

     * @throw IllegalStateException if shutdown is in progress and

     *          the slot is not valid to register.

     */

    void registerShutdownHook(int slot, boolean registerShutdownInProgress, Runnable hook);

    /**

     * Returns the number of stack frames represented by the given throwable.

     */

    int getStackTraceDepth(Throwable t);

    /**

     * Returns the ith StackTraceElement for the given throwable.

     */

    StackTraceElement getStackTraceElement(Throwable t, int i);

    /**

     * Returns a new string backed by the provided character array. The

     * character array is not copied and must never be modified after the

     * String is created, in order to fulfill String's contract.

     *

     * @param chars the character array to back the string

     * @return a newly created string whose content is the character array

     */

    String newStringUnsafe(char[] chars);

}