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/*
* Copyright (c) 2017, 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 CanAccessTest
* @modules java.base/jdk.internal.misc:+open
* @run testng/othervm --illegal-access=deny CanAccessTest
* @summary Test AccessibleObject::canAccess method
*/
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.security.SecureClassLoader;
import jdk.internal.misc.Unsafe;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
@Test
public class CanAccessTest {
private static Unsafe INSTANCE = Unsafe.getUnsafe();
/**
* null object parameter for Constructor
*/
public void testConstructor() throws Exception {
Constructor<?> ctor = Unsafe.class.getDeclaredConstructor();
assertFalse(ctor.canAccess(null));
assertTrue(ctor.trySetAccessible());
try {
// non-null object parameter
ctor.canAccess(INSTANCE);
assertTrue(false);
} catch (IllegalArgumentException expected) {}
}
/**
* Test protected constructors
*/
public void testProtectedConstructor() throws Exception {
TestLoader.testProtectedConstructorNonOpenedPackage();
Constructor<?> ctor = TestLoader.class.getDeclaredConstructor();
assertTrue(ctor.canAccess(null));
}
/**
* null object parameter for static members
*/
public void testStaticMember() throws Exception {
Method m = Unsafe.class.getDeclaredMethod("throwIllegalAccessError");
assertFalse(m.canAccess(null));
assertTrue(m.trySetAccessible());
try {
// non-null object parameter
m.canAccess(INSTANCE);
assertTrue(false);
} catch (IllegalArgumentException expected) { }
}
/**
* Test protected static
*/
public void testProtectedStatic() throws Exception {
Method m = TestLoader.testProtectedStatic();
assertFalse(m.canAccess(null));
}
/**
* the specified object must be an instance of the declaring class
* for instance members
*/
public void testInstanceMethod() throws Exception {
Method m = Unsafe.class.getDeclaredMethod("addressSize0");
assertFalse(m.canAccess(INSTANCE));
try {
m.canAccess(null);
assertTrue(false);
} catch (IllegalArgumentException expected) { }
}
/**
* the specified object must be an instance of the declaring class
* for instance members
*/
public void testInvalidInstanceObject() throws Exception {
Class<?> clazz = Class.forName("sun.security.x509.X500Name");
Method m = clazz.getDeclaredMethod("size");
try {
m.canAccess(INSTANCE);
assertTrue(false);
} catch (IllegalArgumentException expected) { }
}
static class TestLoader extends SecureClassLoader {
public static Method testProtectedStatic() throws Exception {
Method m = ClassLoader.class.getDeclaredMethod("registerAsParallelCapable");
assertTrue(m.canAccess(null));
return m;
}
protected TestLoader() throws Exception {
Constructor<?> ctor = SecureClassLoader.class.getDeclaredConstructor();
assertFalse(ctor.canAccess(null));
assertFalse(ctor.trySetAccessible());
}
public static void testProtectedConstructorNonOpenedPackage() throws Exception {
new TestLoader();
}
}
}
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