| /* |
| * 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.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| public class Main { |
| public static void main(String[] args) throws Exception { |
| System.loadLibrary(args[0]); |
| Class<?> c = Class.forName("ErrClass"); |
| Method m = c.getMethod("errMethod"); |
| |
| // Print the counter before invokes. The golden file expects this to be 0. |
| int hotnessCounter = getHotnessCounter(c, "errMethod"); |
| if (hotnessCounter != 0) { |
| throw new RuntimeException("Unexpected hotnessCounter: " + hotnessCounter); |
| } |
| |
| // Loop enough to make sure the interpreter reports invocations count. |
| long result = 0; |
| for (int i = 0; i < 10000; i++) { |
| try { |
| result += (Long)m.invoke(null); |
| hotnessCounter = getHotnessCounter(c, "errMethod"); |
| if (hotnessCounter != 0) { |
| throw new RuntimeException( |
| "Unexpected hotnessCounter: " + hotnessCounter); |
| } |
| |
| } catch (InvocationTargetException e) { |
| if (!(e.getCause() instanceof NullPointerException)) { |
| throw e; |
| } |
| } |
| } |
| |
| // Not compilable methods should not increase their hotness counter. |
| if (hotnessCounter != 0) { |
| throw new RuntimeException("Unexpected hotnessCounter: " + hotnessCounter); |
| } |
| } |
| |
| public static native int getHotnessCounter(Class cls, String method_name); |
| } |