103 lines
3.7 KiB
Java
103 lines
3.7 KiB
Java
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @summary Verifies the behaviour of Unsafe.defineClass
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.compiler
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* java.management
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* @run main DefineClass
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*/
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import java.security.ProtectionDomain;
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import jdk.test.lib.compiler.InMemoryJavaCompiler;
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import jdk.internal.misc.Unsafe;
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import static jdk.test.lib.Asserts.*;
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public class DefineClass {
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public static void main(String args[]) throws Exception {
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Unsafe unsafe = Unsafe.getUnsafe();
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TestClassLoader classloader = new TestClassLoader();
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ProtectionDomain pd = new ProtectionDomain(null, null);
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byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }");
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// Invalid class data
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try {
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unsafe.defineClass(null, klassbuf, 4, klassbuf.length - 4, classloader, pd);
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throw new RuntimeException("defineClass did not throw expected ClassFormatError");
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} catch (ClassFormatError e) {
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// Expected
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}
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// Negative offset
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try {
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unsafe.defineClass(null, klassbuf, -1, klassbuf.length, classloader, pd);
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throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
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} catch (IndexOutOfBoundsException e) {
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// Expected
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}
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// Negative length
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try {
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unsafe.defineClass(null, klassbuf, 0, -1, classloader, pd);
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throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
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} catch (IndexOutOfBoundsException e) {
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// Expected
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}
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// Offset greater than klassbuf.length
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try {
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unsafe.defineClass(null, klassbuf, klassbuf.length + 1, klassbuf.length, classloader, pd);
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throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
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} catch (IndexOutOfBoundsException e) {
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// Expected
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}
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// Length greater than klassbuf.length
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try {
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unsafe.defineClass(null, klassbuf, 0, klassbuf.length + 1, classloader, pd);
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throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
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} catch (IndexOutOfBoundsException e) {
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// Expected
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}
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Class klass = unsafe.defineClass(null, klassbuf, 0, klassbuf.length, classloader, pd);
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assertEquals(klass.getClassLoader(), classloader);
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assertEquals(klass.getProtectionDomain(), pd);
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}
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private static class TestClassLoader extends ClassLoader {
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public TestClassLoader(ClassLoader parent) {
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super(parent);
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}
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public TestClassLoader() {
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super();
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}
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}
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}
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