319 lines
12 KiB
Java
319 lines
12 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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* @bug 8051045 8166974
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* @summary Test exceptions from invokedynamic and the bootstrap method
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* @modules java.base/jdk.internal.org.objectweb.asm
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* @run main BootstrapMethodErrorTest
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*/
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import jdk.internal.org.objectweb.asm.ClassWriter;
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import jdk.internal.org.objectweb.asm.Handle;
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import jdk.internal.org.objectweb.asm.MethodVisitor;
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import jdk.internal.org.objectweb.asm.Opcodes;
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import java.lang.invoke.CallSite;
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import java.lang.invoke.ConstantCallSite;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import java.lang.invoke.WrongMethodTypeException;
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import java.lang.reflect.InvocationTargetException;
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import java.util.List;
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public class BootstrapMethodErrorTest {
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static abstract class IndyClassloader extends ClassLoader implements Opcodes {
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public IndyClassloader() {
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super(BootstrapMethodErrorTest.class.getClassLoader());
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}
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@Override
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public Class findClass(String name) throws ClassNotFoundException {
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byte[] b;
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try {
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b = loadClassData(name);
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}
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catch (Throwable th) {
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throw new ClassNotFoundException("Loading error", th);
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}
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return defineClass(name, b, 0, b.length);
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}
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static final String BOOTSTRAP_METHOD_CLASS_NAME = "C";
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static final String BOOTSTRAP_METHOD_NAME = "bsm";
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static final String INDY_CALLER_CLASS_NAME = "Exec";
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static final String BOOTSTRAP_METHOD_DESC = MethodType.methodType(
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Object.class, MethodHandles.Lookup.class, String.class, MethodType.class).
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toMethodDescriptorString();
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private byte[] loadClassData(String name) throws Exception {
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ClassWriter cw = new ClassWriter(
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ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
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if (name.equals(BOOTSTRAP_METHOD_CLASS_NAME)) {
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defineIndyBootstrapMethodClass(cw);
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return cw.toByteArray();
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}
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else if (name.equals("Exec")) {
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defineIndyCallingClass(cw);
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return cw.toByteArray();
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}
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return null;
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}
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void defineIndyCallingClass(ClassWriter cw) {
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cw.visit(52, ACC_SUPER | ACC_PUBLIC, INDY_CALLER_CLASS_NAME, null, "java/lang/Object", null);
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MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "invoke", "()V", null, null);
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mv.visitCode();
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Handle h = new Handle(H_INVOKESTATIC,
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BOOTSTRAP_METHOD_CLASS_NAME, BOOTSTRAP_METHOD_NAME,
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BOOTSTRAP_METHOD_DESC, false);
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mv.visitInvokeDynamicInsn(BOOTSTRAP_METHOD_CLASS_NAME, "()V", h);
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mv.visitInsn(RETURN);
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mv.visitMaxs(0, 0);
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mv.visitEnd();
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cw.visitEnd();
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}
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void defineIndyBootstrapMethodClass(ClassWriter cw) {
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cw.visit(52, ACC_SUPER | ACC_PUBLIC,
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BOOTSTRAP_METHOD_CLASS_NAME, null, "java/lang/Object", null);
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MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC,
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BOOTSTRAP_METHOD_NAME, BOOTSTRAP_METHOD_DESC, null, null);
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mv.visitCode();
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defineIndyBootstrapMethodBody(mv);
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mv.visitMaxs(0, 0);
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mv.visitEnd();
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}
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void defineIndyBootstrapMethodBody(MethodVisitor mv) {
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mv.visitInsn(ACONST_NULL);
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mv.visitInsn(ARETURN);
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}
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void invoke() throws Exception {
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Class.forName(BOOTSTRAP_METHOD_CLASS_NAME, true, this);
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Class<?> exec = Class.forName(INDY_CALLER_CLASS_NAME, true, this);
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exec.getMethod("invoke").invoke(null);
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}
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void test() throws Exception {
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Class.forName(BOOTSTRAP_METHOD_CLASS_NAME, true, this);
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Class<?> exec = Class.forName(INDY_CALLER_CLASS_NAME, true, this);
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try {
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exec.getMethod("invoke").invoke(null);
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throw new RuntimeException("Expected InvocationTargetException but no exception at all was thrown");
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} catch (InvocationTargetException e) {
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Throwable t = e.getCause();
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for (Class<? extends Throwable> etc : expectedThrowableClasses()) {
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if (!etc.isInstance(t)) {
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throw new RuntimeException(
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"Expected " + etc.getName() + " but got another exception: "
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+ t.getClass().getName(),
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t);
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}
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t = t.getCause();
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}
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}
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}
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abstract List<Class<? extends Throwable>> expectedThrowableClasses();
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}
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// Methods called by a bootstrap method
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public static CallSite getCallSite() {
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try {
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MethodHandle mh = MethodHandles.lookup().findStatic(
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BootstrapMethodErrorTest.class,
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"target",
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MethodType.methodType(Object.class, Object.class));
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return new ConstantCallSite(mh);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public static Object target(Object o) {
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return null;
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}
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static class TestThrowable extends Throwable {}
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public static void throwsTestThrowable() throws Throwable {
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throw new TestThrowable();
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}
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static class TestError extends Error {}
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public static void throwsTestError() {
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throw new TestError();
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}
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static class TestRuntimeException extends RuntimeException {}
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public static void throwsTestRuntimeException() {
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throw new TestRuntimeException();
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}
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static class TestCheckedException extends Exception {}
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public static void throwsTestCheckedException() throws TestCheckedException {
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throw new TestCheckedException();
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}
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// Test classes
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static class InaccessibleBootstrapMethod extends IndyClassloader {
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void defineIndyBootstrapMethodClass(ClassWriter cw) {
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cw.visit(52, ACC_SUPER | ACC_PUBLIC,
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BOOTSTRAP_METHOD_CLASS_NAME, null, "java/lang/Object", null);
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// Bootstrap method is declared to be private
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MethodVisitor mv = cw.visitMethod(ACC_PRIVATE | ACC_STATIC,
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BOOTSTRAP_METHOD_NAME, BOOTSTRAP_METHOD_DESC, null, null);
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mv.visitCode();
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defineIndyBootstrapMethodBody(mv);
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mv.visitMaxs(0, 0);
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mv.visitEnd();
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(IllegalAccessError.class);
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}
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}
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static class BootstrapMethodDoesNotReturnCallSite extends IndyClassloader {
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void defineIndyBootstrapMethodBody(MethodVisitor mv) {
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// return null from the bootstrap method,
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// which cannot be cast to CallSite
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mv.visitInsn(ACONST_NULL);
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mv.visitInsn(ARETURN);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(BootstrapMethodError.class, ClassCastException.class);
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}
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}
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static class BootstrapMethodCallSiteHasWrongTarget extends IndyClassloader {
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@Override
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void defineIndyBootstrapMethodBody(MethodVisitor mv) {
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// Invoke the method BootstrapMethodErrorTest.getCallSite to obtain
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// a CallSite instance whose target is different from that of
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// the indy call site
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mv.visitMethodInsn(INVOKESTATIC, "BootstrapMethodErrorTest",
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"getCallSite", "()Ljava/lang/invoke/CallSite;", false);
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mv.visitInsn(ARETURN);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(BootstrapMethodError.class, WrongMethodTypeException.class);
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}
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}
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abstract static class BootstrapMethodThrows extends IndyClassloader {
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final String methodName;
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public BootstrapMethodThrows(Class<? extends Throwable> t) {
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this.methodName = "throws" + t.getSimpleName();
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}
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@Override
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void defineIndyBootstrapMethodBody(MethodVisitor mv) {
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// Invoke the method whose name is methodName which will throw
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// an exception
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mv.visitMethodInsn(INVOKESTATIC, "BootstrapMethodErrorTest",
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methodName, "()V", false);
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mv.visitInsn(ACONST_NULL);
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mv.visitInsn(ARETURN);
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}
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}
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static class BootstrapMethodThrowsThrowable extends BootstrapMethodThrows {
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public BootstrapMethodThrowsThrowable() {
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super(TestThrowable.class);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(BootstrapMethodError.class, TestThrowable.class);
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}
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}
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static class BootstrapMethodThrowsError extends BootstrapMethodThrows {
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public BootstrapMethodThrowsError() {
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super(TestError.class);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(TestError.class);
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}
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}
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static class BootstrapMethodThrowsRuntimeException extends BootstrapMethodThrows {
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public BootstrapMethodThrowsRuntimeException() {
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super(TestRuntimeException.class);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(BootstrapMethodError.class, TestRuntimeException.class);
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}
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}
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static class BootstrapMethodThrowsCheckedException extends BootstrapMethodThrows {
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public BootstrapMethodThrowsCheckedException() {
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super(TestCheckedException.class);
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}
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@Override
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List<Class<? extends Throwable>> expectedThrowableClasses() {
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return List.of(BootstrapMethodError.class, TestCheckedException.class);
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}
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}
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public static void main(String[] args) throws Exception {
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new InaccessibleBootstrapMethod().test();
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new BootstrapMethodDoesNotReturnCallSite().test();
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new BootstrapMethodCallSiteHasWrongTarget().test();
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new BootstrapMethodThrowsThrowable().test();
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new BootstrapMethodThrowsError().test();
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new BootstrapMethodThrowsRuntimeException().test();
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new BootstrapMethodThrowsCheckedException().test();
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}
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}
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