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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 public class Main {
     18   public static void main(String[] args) throws Exception {
     19     System.loadLibrary(args[0]);
     20     // Loop enough to get Itf.foo JITed.
     21     for (int i = 0; i < 100000; i++) {
     22       Itf.foo(new Object());
     23     }
     24 
     25     ensureJitCompiled(Itf.class, "foo");
     26 
     27     if (!Itf.foo(new Object())) {
     28       throw new Error("Unexpected result");
     29     }
     30   }
     31 
     32   private static native void ensureJitCompiled(Class<?> itf, String method_name);
     33 }
     34 
     35 interface Itf {
     36   public static boolean foo(Object o) {
     37     return o.equals(o);
     38   }
     39 }
     40