jdk/src/share/classes/sun/awt/NativeLibLoader.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/awt/NativeLibLoader.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,59 @@
+/*
+ * Copyright 1998 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.awt;
+
+class NativeLibLoader {
+
+    /**
+     * This is copied from java.awt.Toolkit since we need the library
+     * loaded in sun.awt.image also:
+     *
+     * WARNING: This is a temporary workaround for a problem in the
+     * way the AWT loads native libraries. A number of classes in this
+     * package (sun.awt.image) have a native method, initIDs(),
+     * which initializes
+     * the JNI field and method ids used in the native portion of
+     * their implementation.
+     *
+     * Since the use and storage of these ids is done by the
+     * implementation libraries, the implementation of these method is
+     * provided by the particular AWT implementations
+     * (i.e. "Toolkit"s/Peer), such as Motif, Win32 or Tiny. The
+     * problem is that this means that the native libraries must be
+     * loaded by the java.* classes, which do not necessarily know the
+     * names of the libraries to load. A better way of doing this
+     * would be to provide a separate library which defines java.awt.*
+     * initIDs, and exports the relevant symbols out to the
+     * implementation libraries.
+     *
+     * For now, we know it's done by the implementation, and we assume
+     * that the name of the library is "awt".  -br.
+     */
+    static void loadLibraries() {
+        java.security.AccessController.doPrivileged(
+            new sun.security.action.LoadLibraryAction("awt"));
+    }
+}