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/*
* Copyright (C) 2009 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.
*/
package sun.misc;
import junit.framework.TestCase;
import java.lang.reflect.Field;
import java.util.concurrent.Callable;
import java.util.concurrent.Executors;
public class UnsafeTest extends TestCase {
public void test_getUnsafeForbidden() {
try {
Unsafe.getUnsafe();
fail();
} catch (SecurityException expected) {
}
}
/**
* Regression for 2053217. We used to look one level higher than necessary
* on the stack.
*/
public void test_getUnsafeForbiddenWithSystemCaller() throws Exception {
Callable<Object> callable = Executors.callable(new Runnable() {
public void run() {
Unsafe.getUnsafe();
}
});
try {
callable.call();
fail();
} catch (SecurityException expected) {
}
}
private class AllocateInstanceTestClass {
public int i = 123;
public String s = "hello";
public Object getThis() { return AllocateInstanceTestClass.this; }
}
private static Unsafe getUnsafe() throws Exception {
Class<?> unsafeClass = Class.forName("sun.misc.Unsafe");
Field f = unsafeClass.getDeclaredField("theUnsafe");
f.setAccessible(true);
return (Unsafe) f.get(null);
}
public void test_allocateInstance() throws Exception {
AllocateInstanceTestClass i = (AllocateInstanceTestClass)
getUnsafe().allocateInstance(AllocateInstanceTestClass.class);
assertEquals(0, i.i);
assertEquals(null, i.s);
assertEquals(i, i.getThis());
}
}
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