1 /* 2 * Copyright (C) 2009 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 package sun.misc; 18 19 import junit.framework.TestCase; 20 21 import java.lang.reflect.Field; 22 import java.util.concurrent.Callable; 23 import java.util.concurrent.Executors; 24 25 public class UnsafeTest extends TestCase { 26 27 public void test_getUnsafeForbidden() { 28 try { 29 Unsafe.getUnsafe(); 30 fail(); 31 } catch (SecurityException expected) { 32 } 33 } 34 35 /** 36 * Regression for 2053217. We used to look one level higher than necessary 37 * on the stack. 38 */ 39 public void test_getUnsafeForbiddenWithSystemCaller() throws Exception { 40 Callable<Object> callable = Executors.callable(new Runnable() { 41 public void run() { 42 Unsafe.getUnsafe(); 43 } 44 }); 45 46 try { 47 callable.call(); 48 fail(); 49 } catch (SecurityException expected) { 50 } 51 } 52 53 private class AllocateInstanceTestClass { 54 public int i = 123; 55 public String s = "hello"; 56 public Object getThis() { return AllocateInstanceTestClass.this; } 57 } 58 59 private static Unsafe getUnsafe() throws Exception { 60 Class<?> unsafeClass = Class.forName("sun.misc.Unsafe"); 61 Field f = unsafeClass.getDeclaredField("theUnsafe"); 62 f.setAccessible(true); 63 return (Unsafe) f.get(null); 64 } 65 66 public void test_allocateInstance() throws Exception { 67 AllocateInstanceTestClass i = (AllocateInstanceTestClass) 68 getUnsafe().allocateInstance(AllocateInstanceTestClass.class); 69 assertEquals(0, i.i); 70 assertEquals(null, i.s); 71 assertEquals(i, i.getThis()); 72 } 73 } 74
