1 
   2 /*
   3  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 package runtime.valhalla.valuetypes;
  25 
  26 /* @test
  27  * @summary test JNI functions with values
  28  * @run main/othervm/native -Xint -XX:+EnableValhalla runtime.valhalla.valuetypes.ValueWithJni
  29  */
  30 public __ByValue final class ValueWithJni {
  31 
  32     static {
  33         System.loadLibrary("ValueWithJni");
  34     }
  35 
  36     public static void main(String[] args) {
  37         testJniMonitorOps();
  38     }
  39 
  40     final int x;
  41     private ValueWithJni() { x = 0; }
  42 
  43     public native void doJniMonitorEnter();
  44     public native void doJniMonitorExit();
  45 
  46     public static ValueWithJni createValueWithJni(int x) {
  47         ValueWithJni v = __MakeDefault ValueWithJni();
  48         v = __WithField(v.x, x);
  49         return v;
  50     }
  51 
  52     public static void testJniMonitorOps() {
  53         boolean sawImse = false;
  54         try {
  55             createValueWithJni(0).doJniMonitorEnter();
  56         } catch (Throwable t) {
  57             sawImse = checkImse(t);
  58         }
  59         if (!sawImse) {
  60             throw new RuntimeException("JNI MonitorEnter did not fail");
  61         }
  62         sawImse = false;
  63         try {
  64             createValueWithJni(0).doJniMonitorExit();
  65         } catch (Throwable t) {
  66             sawImse = checkImse(t);
  67         }
  68         if (!sawImse) {
  69             throw new RuntimeException("JNI MonitorExit did not fail");
  70         }
  71     }
  72 
  73     static boolean checkImse(Throwable t) {
  74         if (t instanceof IllegalMonitorStateException) {
  75             return true;
  76         }
  77         throw new RuntimeException(t);
  78     }
  79 }