| /* |
| * Copyright (c) 2015, 2016, 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 |
| * @summary Verifies the behaviour of Unsafe.defineClass |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.compiler |
| * java.management |
| * @run main DefineClass |
| */ |
| |
| import java.security.ProtectionDomain; |
| |
| import jdk.test.lib.compiler.InMemoryJavaCompiler; |
| import jdk.internal.misc.Unsafe; |
| import static jdk.test.lib.Asserts.*; |
| |
| public class DefineClass { |
| public static void main(String args[]) throws Exception { |
| Unsafe unsafe = Unsafe.getUnsafe(); |
| TestClassLoader classloader = new TestClassLoader(); |
| ProtectionDomain pd = new ProtectionDomain(null, null); |
| |
| byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }"); |
| |
| // Invalid class data |
| try { |
| unsafe.defineClass(null, klassbuf, 4, klassbuf.length - 4, classloader, pd); |
| throw new RuntimeException("defineClass did not throw expected ClassFormatError"); |
| } catch (ClassFormatError e) { |
| // Expected |
| } |
| |
| // Negative offset |
| try { |
| unsafe.defineClass(null, klassbuf, -1, klassbuf.length, classloader, pd); |
| throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // Expected |
| } |
| |
| // Negative length |
| try { |
| unsafe.defineClass(null, klassbuf, 0, -1, classloader, pd); |
| throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // Expected |
| } |
| |
| // Offset greater than klassbuf.length |
| try { |
| unsafe.defineClass(null, klassbuf, klassbuf.length + 1, klassbuf.length, classloader, pd); |
| throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // Expected |
| } |
| |
| // Length greater than klassbuf.length |
| try { |
| unsafe.defineClass(null, klassbuf, 0, klassbuf.length + 1, classloader, pd); |
| throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // Expected |
| } |
| |
| Class klass = unsafe.defineClass(null, klassbuf, 0, klassbuf.length, classloader, pd); |
| assertEquals(klass.getClassLoader(), classloader); |
| assertEquals(klass.getProtectionDomain(), pd); |
| } |
| |
| private static class TestClassLoader extends ClassLoader { |
| public TestClassLoader(ClassLoader parent) { |
| super(parent); |
| } |
| |
| public TestClassLoader() { |
| super(); |
| } |
| } |
| } |