1 /*
   2  * Copyright (c) 2013, 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test WhiteBox
  26  * @bug 8011675
  27  * @summary verify that whitebox can be used even if not all functions are declared in java-part
  28  * @author igor.ignatyev@oracle.com
  29  * @library /testlibrary
  30  * @compile WhiteBox.java
  31  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  32  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI sun.hotspot.WhiteBox
  33  * @clean sun.hotspot.WhiteBox
  34  */
  35 
  36 package sun.hotspot;
  37 
  38 public class WhiteBox {
  39     private static native void registerNatives();
  40     static { registerNatives(); }
  41     public native int notExistedMethod();
  42     public native int getHeapOopSize();
  43     public static void main(String[] args) {
  44         WhiteBox wb = new WhiteBox();
  45         if (wb.getHeapOopSize() < 0) {
  46             throw new Error("wb.getHeapOopSize() < 0");
  47         }
  48         boolean catched = false;
  49         try {
  50             wb.notExistedMethod();
  51         } catch (UnsatisfiedLinkError e) {
  52             catched = true;
  53         }
  54         if (!catched) {
  55             throw new Error("wb.notExistedMethod() was invoked");
  56         }
  57     }
  58 }