test/hotspot/jtreg/gc/epsilon/CriticalNativeArgs.java
author zgu
Tue, 31 Jul 2018 13:12:06 -0400
changeset 51267 2cd8bbccbd2d
permissions -rw-r--r--
8199868: Support JNI critical functions in object pinning API Summary: Pin/unpin incoming array arguments of critical native JNI call Reviewed-by: shade, adinn

/*
 * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates.
 *
 * 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.
 *
 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */


/*
 * @test CriticalNativeStress
 * @key gc
 * @bug 8199868
 * @requires (os.arch =="x86_64" | os.arch == "amd64") & (vm.bits == "64") & vm.gc.Epsilon & !vm.graal.enabled
 * @summary test argument unpacking nmethod wrapper of critical native method
 * @run main/othervm/native -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xcomp -Xmx256M -XX:+CriticalJNINatives CriticalNativeArgs
 */
public class CriticalNativeArgs {
  static {
    System.loadLibrary("CriticalNative");
  }

  static native boolean isNull(int[] a);

  public static void main(String[] args) {
    int[] arr = new int[2];

    if (isNull(arr)) {
      throw new RuntimeException("Should not be null");
    }

    if (!isNull(null)) {
      throw new RuntimeException("Should be null");
    }
  }
}