content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  /**
   * Test that daemon threads that call into a JNI env after the runtime is shutdown do not crash.
   */
  public class Main {
  
      public final static int THREAD_COUNT = 4;
  
      public static void main(String[] args) throws Exception {
          System.loadLibrary(args[0]);
  
          for (int i = 0; i < THREAD_COUNT; i++) {
              Thread t = new Thread(new DaemonRunnable());
              t.setDaemon(true);
              t.start();
          }
          // Give threads time to start and become stuck in waitAndCallIntoJniEnv.
          Thread.sleep(1000);
          destroyJavaVMAndExit();
      }
  
      static native void waitAndCallIntoJniEnv();
      static native void destroyJavaVMAndExit();
  
      private static class DaemonRunnable implements Runnable {
          public void run() {
              for (;;) {
                  waitAndCallIntoJniEnv();
              }
          }
      }
  }
  