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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 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.awt; | |
| 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 | |
| 44 | + * (i.e. "Toolkit"s/Peer), such as Motif, Win32 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 sun.security.action.LoadLibraryAction("awt")); | |
| 58 | + } | |
| 59 | +} | |