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 import java.lang.reflect.InvocationTargetException;
18 import java.lang.reflect.Method;
19 
20 public class Main {
21 
main(String[] args)22   public static void main(String[] args) throws Exception {
23     Class<?> c = Class.forName("java.lang.StringFactory");
24     Method m = c.getDeclaredMethod("newStringFromBytes", byte[].class, int.class);
25 
26     // Loop over allocations to get more chances of doing GC while in the
27     // newStringFromBytes intrinsic.
28     for (int i = 0; i < 10; i++) {
29       try {
30         byte[] f = new byte[100000000];
31         f[0] = (byte)i;
32         f[1] = (byte)i;
33         m.invoke(null, f, 0);
34       } catch (InvocationTargetException e) {
35         if (e.getCause() instanceof OutOfMemoryError) {
36           // Ignore, this is a stress test.
37         } else {
38           throw e;
39         }
40       } catch (OutOfMemoryError e) {
41         // Ignore, this is a stress test.
42       }
43     }
44   }
45 }
46