1 /*
2  * Copyright (C) 2020 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 
main(String[] args)19   public static void main(String[] args) {
20     try {
21       $noinline$doTest(args);
22       throw new Error("Expected ArrayStoreException");
23     } catch (ArrayStoreException e) {
24       // expected
25       check(e, mainLine, methodLine, "$noinline$doTest");
26     }
27   }
28 
$noinline$doTest(String[] args)29   public static void $noinline$doTest(String[] args) {
30     Object[] o = new String[2];
31     o[0] = args;
32   }
33 
34   public static int mainLine = 21;
35   public static int methodLine = 31;
36 
check(ArrayStoreException ase, int mainLine, int methodLine, String methodName)37   static void check(ArrayStoreException ase, int mainLine, int methodLine, String methodName) {
38     StackTraceElement[] trace = ase.getStackTrace();
39     checkElement(trace[0], "Main", methodName, "Main.java", methodLine);
40     checkElement(trace[1], "Main", "main", "Main.java", mainLine);
41   }
42 
checkElement(StackTraceElement element, String declaringClass, String methodName, String fileName, int lineNumber)43   static void checkElement(StackTraceElement element,
44                            String declaringClass, String methodName,
45                            String fileName, int lineNumber) {
46     assertEquals(declaringClass, element.getClassName());
47     assertEquals(methodName, element.getMethodName());
48     assertEquals(fileName, element.getFileName());
49     assertEquals(lineNumber, element.getLineNumber());
50   }
51 
assertEquals(Object expected, Object actual)52   static void assertEquals(Object expected, Object actual) {
53     if (!expected.equals(actual)) {
54       String msg = "Expected \"" + expected + "\" but got \"" + actual + "\"";
55       throw new AssertionError(msg);
56     }
57   }
58 
assertEquals(int expected, int actual)59   static void assertEquals(int expected, int actual) {
60     if (expected != actual) {
61       throw new AssertionError("Expected " + expected + " got " + actual);
62     }
63   }
64 }
65