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.
   */
  
  import java.lang.reflect.Method;
  
  public class Main {
    public static void main(String[] args) {
      System.loadLibrary(args[0]);
  
      // Get all methods. We cannot call getDeclaredMethod("foo") as
      // that would make "foo" a strong root.
      Method[] methods = Main.class.getDeclaredMethods();
  
      // Call getName on the methods, which is implemented by using the dex
      // cache and  calling setResolvedString.
      for (int i = 0; i < methods.length; i++) {
        methods[i].getName();
      }
  
      // Compile Main.foo. "foo" needs to be a strong root for JIT compilation.
      // We stress test this:
      //   - avoid strongly interning "foo" by doing "f" + "oo"
      //   - call GC so that weaks can be collected.
      //   - invoke foo() to make sure "foo" hasn't been collected.
      ensureJitCompiled(Main.class, "f" + "oo");
      Runtime.getRuntime().gc();
      foo();
    }
  
    public static void foo() {
      System.out.println("foo");
    }
  
    public static native void ensureJitCompiled(Class cls, String method_name);
  }
  