test/hotspot/jtreg/runtime/BoolReturn/JNIBooleanTest.java

/*
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 * 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.
 *
 * 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
 * @bug 8209637
 * @summary [s390x] Interpreter doesn't call result handler after native calls
 * @author Volker Simonis
 *
 * @run main/othervm/native -XX:-UseOnStackReplacement -Xbatch JNIBooleanTest 50000
 * @run main/othervm/native -Xint JNIBooleanTest 256
 */

import java.lang.reflect.Method;

public class JNIBooleanTest {
  static native boolean foo(byte b);

  static boolean bar(byte b) {
    return foo(b);
  }

  public static void main(String args[]) throws Exception {
    int count = args.length > 0 ? Integer.parseInt(args[0]) : 50_000;
    byte b = 0;
    for (int i = 0; i < count; i++) {
      boolean bool = foo(b);
      if ((b == 0 && bool) || (b != 0 && !bool)) {
        throw new RuntimeException("Error: foo(" + b + ") = " + bool + " in iteration " + i);
      }
      b++;
    }

    b = 0;
    for (int i = 0; i < count; i++) {
      boolean bool = bar(b);
      if ((b == 0 && bool) || (b != 0 && !bool)) {
        throw new RuntimeException("Error: bar(" + b + ") = " + bool + " in iteration " + i);
      }
      b++;
    }

    Method foo = JNIBooleanTest.class.getDeclaredMethod("foo", byte.class);

    b = 0;
    for (int i = 0; i < count; i++) {
      boolean bool = ((Boolean)foo.invoke(null, b)).booleanValue();
      if ((b == 0 && bool) || (b != 0 && !bool)) {
        throw new RuntimeException("Error: foo(" + b + ") = " + bool + " in iteration " + i + " (reflective)");
      }
      b++;
    }

    Method bar = JNIBooleanTest.class.getDeclaredMethod("bar", byte.class);

    b = 0;
    for (int i = 0; i < count; i++) {
      boolean bool = ((Boolean)bar.invoke(null, b)).booleanValue();
      if ((b == 0 && bool) || (b != 0 && !bool)) {
        throw new RuntimeException("Error: bar(" + b + ") = " + bool + " in iteration " + i + " (reflective)");
      }
      b++;
    }
  }

  static {
    System.loadLibrary("JNIBooleanTest");
  }
}