1 /*
   2  * Copyright (c) 1998, 2002, 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 java.awt.event;
  27 
  28 class NativeLibLoader {
  29 
  30     /**
  31      * This is copied from java.awt.Toolkit since we need the library
  32      * loaded in sun.awt.image also:
  33      *
  34      * WARNING: This is a temporary workaround for a problem in the
  35      * way the AWT loads native libraries. A number of classes in this
  36      * package (sun.awt.image) have a native method, initIDs(),
  37      * which initializes
  38      * the JNI field and method ids used in the native portion of
  39      * their implementation.
  40      *
  41      * Since the use and storage of these ids is done by the
  42      * implementation libraries, the implementation of these method is
  43      * provided by the particular AWT implementations (for example,
  44      *  "Toolkit"s/Peer), such as Motif, Microsoft Windows, or Tiny. The
  45      * problem is that this means that the native libraries must be
  46      * loaded by the java.* classes, which do not necessarily know the
  47      * names of the libraries to load. A better way of doing this
  48      * would be to provide a separate library which defines java.awt.*
  49      * initIDs, and exports the relevant symbols out to the
  50      * implementation libraries.
  51      *
  52      * For now, we know it's done by the implementation, and we assume
  53      * that the name of the library is "awt".  -br.
  54      */
  55     static void loadLibraries() {
  56         java.security.AccessController.doPrivileged(
  57             new java.security.PrivilegedAction<Void>() {
  58                 public Void run() {
  59                     System.loadLibrary("awt");
  60                     return null;
  61                 }
  62             });
  63     }
  64 }