1 /*
   2  * Copyright (c) 2002, 2014, 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 
  27 package com.sun.java.accessibility;
  28 
  29 @jdk.Exported(false)
  30 abstract class AccessBridgeLoader {
  31 
  32     /**
  33      * Load JavaAccessBridge.DLL (our native half)
  34      */
  35     static {
  36         java.security.AccessController.doPrivileged(
  37             new java.security.PrivilegedAction<Object>() {
  38                 public Object run() {
  39                     System.loadLibrary("JavaAccessBridge");
  40                     return null;
  41                 }
  42             }, null, new RuntimePermission("loadLibrary.JavaAccessBridge")
  43         );
  44     }
  45 
  46     boolean useJAWT_DLL = false;
  47 
  48     /**
  49      * AccessBridgeLoader constructor
  50      */
  51     AccessBridgeLoader() {
  52         String version = System.getProperty("java.version");
  53         if (version != null)
  54             useJAWT_DLL = (version.compareTo("1.4.1") >= 0);
  55 
  56         // load JAWTAccessBridge.DLL on JDK 1.4.1 or later
  57         if (useJAWT_DLL) {
  58             // Note that we have to explicitly load JAWT.DLL
  59             java.security.AccessController.doPrivileged(
  60                 new java.security.PrivilegedAction<Object>() {
  61                     public Object run() {
  62                         System.loadLibrary("JAWT");
  63                         System.loadLibrary("JAWTAccessBridge");
  64                         return null;
  65                     }
  66                 }, null, new RuntimePermission("loadLibrary.JAWT"),
  67                          new RuntimePermission("loadLibrary.JAWTAccessBridge")
  68             );
  69         }
  70     }
  71 }