1 /*
2  * Copyright (c) 2014, 2016, 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
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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
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24  */
25 package jdk.internal.jimage;
26 
27 import java.nio.ByteBuffer;
28 
29 /**
30  * @implNote This class needs to maintain JDK 8 source compatibility.
31  *
32  * It is used internally in the JDK to implement jimage/jrtfs access,
33  * but also compiled and delivered as part of the jrtfs.jar to support access
34  * to the jimage file provided by the shipped JDK by tools running on JDK 8.
35  */
36 class NativeImageBuffer {
37     static {
java.security.AccessController.doPrivileged( new java.security.PrivilegedAction<Void>() { public Void run() { System.loadLibrary(R); return null; } })38         java.security.AccessController.doPrivileged(
39                 new java.security.PrivilegedAction<Void>() {
40                     public Void run() {
41                         System.loadLibrary("jimage");
42                         return null;
43                     }
44                 });
45     }
46 
getNativeMap(String imagePath)47     native static ByteBuffer getNativeMap(String imagePath);
48 }
49