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ModuleSetAccessibleTest.java
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ModuleSetAccessibleTest.java
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/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @build ModuleSetAccessibleTest
* @modules java.base/java.lang:open
* java.base/jdk.internal.misc:+open
* @run testng/othervm --illegal-access=deny ModuleSetAccessibleTest
* @summary Test java.lang.reflect.AccessibleObject with modules
*/
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InaccessibleObjectException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import jdk.internal.misc.Unsafe;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
@Test
public class ModuleSetAccessibleTest {
/**
* Invoke a private constructor on a public class in an exported package
*/
public void testPrivateConstructorInExportedPackage() throws Exception {
Constructor<?> ctor = Unsafe.class.getDeclaredConstructor();
try {
ctor.newInstance();
assertTrue(false);
} catch (IllegalAccessException expected) { }
ctor.setAccessible(true);
Unsafe unsafe = (Unsafe) ctor.newInstance();
}
/**
* Invoke a private method on a public class in an exported package
*/
public void testPrivateMethodInExportedPackage() throws Exception {
Method m = Unsafe.class.getDeclaredMethod("throwIllegalAccessError");
try {
m.invoke(null);
assertTrue(false);
} catch (IllegalAccessException expected) { }
m.setAccessible(true);
try {
m.invoke(null);
assertTrue(false);
} catch (InvocationTargetException e) {
// thrown by throwIllegalAccessError
assertTrue(e.getCause() instanceof IllegalAccessError);
}
}
/**
* Access a private field in a public class that is an exported package
*/
public void testPrivateFieldInExportedPackage() throws Exception {
Field f = Unsafe.class.getDeclaredField("theUnsafe");
try {
f.get(null);
assertTrue(false);
} catch (IllegalAccessException expected) { }
f.setAccessible(true);
Unsafe unsafe = (Unsafe) f.get(null);
}
/**
* Invoke a public constructor on a public class in a non-exported package
*/
public void testPublicConstructorInNonExportedPackage() throws Exception {
Class<?> clazz = Class.forName("sun.security.x509.X500Name");
Constructor<?> ctor = clazz.getConstructor(String.class);
try {
ctor.newInstance("cn=duke");
assertTrue(false);
} catch (IllegalAccessException expected) { }
try {
ctor.setAccessible(true);
assertTrue(false);
} catch (InaccessibleObjectException expected) { }
ctor.setAccessible(false); // should succeed
}
/**
* Access a public field in a public class that in a non-exported package
*/
public void testPublicFieldInNonExportedPackage() throws Exception {
Class<?> clazz = Class.forName("sun.security.x509.X500Name");
Field f = clazz.getField("SERIALNUMBER_OID");
try {
f.get(null);
assertTrue(false);
} catch (IllegalAccessException expected) { }
try {
f.setAccessible(true);
assertTrue(false);
} catch (InaccessibleObjectException expected) { }
f.setAccessible(false); // should succeed
}
/**
* Test that the Class constructor cannot be make accessible.
*/
public void testJavaLangClass() throws Exception {
// non-public constructor
Constructor<?> ctor
= Class.class.getDeclaredConstructor(ClassLoader.class, Class.class);
AccessibleObject[] ctors = { ctor };
try {
ctor.setAccessible(true);
assertTrue(false);
} catch (SecurityException expected) { }
try {
AccessibleObject.setAccessible(ctors, true);
assertTrue(false);
} catch (SecurityException expected) { }
// should succeed
ctor.setAccessible(false);
AccessibleObject.setAccessible(ctors, false);
}
}