Mercurial > hg > graal-compiler
view test/compiler/jsr292/methodHandleExceptions/TestAMEnotNPE.java @ 12995:e64f1fe9756b
8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
Summary: Rewrite of the getLoadedClasses() method implementation to include anonymous classes.
Reviewed-by: coleenp, sspitsyn
author | farvidsson |
---|---|
date | Thu, 24 Oct 2013 10:02:02 +0200 |
parents | dc261f466b6d |
children | 9d15b81d5d1b |
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/* * Copyright (c) 2013, 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. * */ import java.lang.reflect.InvocationTargetException; import jdk.internal.org.objectweb.asm.ClassWriter; import jdk.internal.org.objectweb.asm.Handle; import jdk.internal.org.objectweb.asm.MethodVisitor; import jdk.internal.org.objectweb.asm.Opcodes; /** * @test * @bug 8025260 * @summary Ensure that AbstractMethodError is thrown, not NullPointerException, through MethodHandles::jump_from_method_handle code path * * @compile -XDignore.symbol.file ByteClassLoader.java I.java C.java TestAMEnotNPE.java * @run main/othervm TestAMEnotNPE */ public class TestAMEnotNPE implements Opcodes { /** * The bytes for D, a NOT abstract class extending abstract class C * without supplying an implementation for abstract method m. * There is a default method in the interface I, but it should lose to * the abstract class. class D extends C { D() { super(); } // does not define m } * @return * @throws Exception */ public static byte[] bytesForD() throws Exception { ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS); MethodVisitor mv; cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "D", null, "C", null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "C", "<init>", "()V"); mv.visitInsn(RETURN); mv.visitMaxs(0, 0); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); } /** * The bytecodes for an invokeExact of a particular methodHandle, I.m, invoked on a D class T { T() { super(); } // boring constructor int test() { MethodHandle mh = `I.m():int`; D d = new D(); return mh.invokeExact(d); // Should explode here, AbstractMethodError } } * @return * @throws Exception */ public static byte[] bytesForT() throws Exception { ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS); MethodVisitor mv; cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "T", null, "java/lang/Object", null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); mv.visitInsn(RETURN); mv.visitMaxs(0,0); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null); mv.visitCode(); mv.visitLdcInsn(new Handle(Opcodes.H_INVOKEINTERFACE, "I", "m", "()I")); mv.visitTypeInsn(NEW, "D"); mv.visitInsn(DUP); mv.visitMethodInsn(INVOKESPECIAL, "D", "<init>", "()V"); mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invokeExact", "(LI;)I"); mv.visitInsn(IRETURN); mv.visitMaxs(0,0); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); } public static void main(String args[] ) throws Throwable { ByteClassLoader bcl = new ByteClassLoader(); Class<?> d = bcl.loadBytes("D", bytesForD()); Class<?> t = bcl.loadBytes("T", bytesForT()); try { Object result = t.getMethod("test").invoke(null); System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw no exception"); throw new Error("Missing expected exception"); } catch (InvocationTargetException e) { Throwable th = e.getCause(); if (th instanceof AbstractMethodError) { th.printStackTrace(System.out); System.out.println("PASS, saw expected exception (AbstractMethodError, wrapped in InvocationTargetException)."); } else { System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw " + th); throw th; } } } }