283 lines
15 KiB
Java
283 lines
15 KiB
Java
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/*
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* Copyright (c) 2017, 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 8186046
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* @summary Test nested dynamic constant declarations that are recursive
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* @library /lib/testlibrary/bytecode
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* @build jdk.experimental.bytecode.BasicClassBuilder
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* @run testng CondyNestedTest
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* @run testng/othervm -XX:+UnlockDiagnosticVMOptions -XX:UseBootstrapCallInfo=3 CondyNestedTest
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*/
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import jdk.experimental.bytecode.BasicClassBuilder;
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import jdk.experimental.bytecode.Flag;
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import jdk.experimental.bytecode.MacroCodeBuilder;
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import jdk.experimental.bytecode.PoolHelper;
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import jdk.experimental.bytecode.TypeTag;
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import jdk.experimental.bytecode.TypedCodeBuilder;
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import org.testng.Assert;
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import org.testng.annotations.BeforeClass;
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import org.testng.annotations.Test;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.lang.invoke.CallSite;
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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.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Base64;
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public class CondyNestedTest {
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/**
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* NOTE: This is a temporary solution until asmtools is updated to support
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* dynamic constant and jtreg is updated to include a new version of
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* asmtools.
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*
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* These are the class file bytes for a class named CondyNestedTest_Code
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* whose bytes are 1) generated by the generator() function; 2) the bytes
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* converted to a jcod file:
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*
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* java -jar asmtools.jar jdec CondyNestedTest_Code.class >
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* CondyNestedTest_Code.jcod
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*
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* which was then edited so that dynamic constant declarations are
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* recursive both for an ldc or invokedynamic (specifically declaring a
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* BSM+attributes whose static argument is a dynamic constant
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* that refers to the same BSM+attributes); 3) the jcod file is converted
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* back to a class file:
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*
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* java -jar asmtools.jar jdis [options] CondyNestedTest_Code.jcod
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*
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* ;and finally 4) the newly generated class file bytes are converted to
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* a base64 representation and embedded in the following String.
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*/
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static final String CLASS_CondyNestedTest_Code =
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"yv66vgAAADcAQgEAEGphdmEvbGFuZy9PYmplY3QHAAEBAAY8aW5pdD4BAAMoKVYMAAMABAoAAgAFAQAE" +
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"Q29kZQEAEGphdmEvbGFuZy9TdHJpbmcHAAgBAAZpbnRlcm4BABQoKUxqYXZhL2xhbmcvU3RyaW5nOwwA" +
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"CgALCgAJAAwBABNjb25keV9ic21fY29uZHlfYnNtCAAOAQAUQ29uZHlOZXN0ZWRUZXN0X0NvZGUHABAB" +
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"ABQoKUxqYXZhL2xhbmcvT2JqZWN0OwwADgASCgARABMBABZpbmR5X2JzbUluZHlfY29uZHlfYnNtCAAV" +
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"DAAVABIKABEAFwEAEmluZHlfYnNtX2NvbmR5X2JzbQgAGQwAGQASCgARABsBAA1TdGFja01hcFRhYmxl" +
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"AQAEbWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBABtqYXZhL2xhbmcvaW52b2tlL01ldGhvZFR5" +
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"cGUHACABACFqYXZhL2xhbmcvaW52b2tlL0NvbnN0YW50Q2FsbFNpdGUHACIBAB5qYXZhL2xhbmcvaW52" +
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"b2tlL01ldGhvZEhhbmRsZXMHACQBAAhjb25zdGFudAEARChMamF2YS9sYW5nL0NsYXNzO0xqYXZhL2xh" +
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"bmcvT2JqZWN0OylMamF2YS9sYW5nL2ludm9rZS9NZXRob2RIYW5kbGU7DAAmACcKACUAKAEAIihMamF2" +
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"YS9sYW5nL2ludm9rZS9NZXRob2RIYW5kbGU7KVYMAAMAKgoAIwArAQADYnNtAQBxKExqYXZhL2xhbmcv" +
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"aW52b2tlL01ldGhvZEhhbmRsZXMkTG9va3VwO0xqYXZhL2xhbmcvU3RyaW5nO0xqYXZhL2xhbmcvT2Jq" +
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"ZWN0O0xqYXZhL2xhbmcvT2JqZWN0OylMamF2YS9sYW5nL09iamVjdDsBAAdic21JbmR5AQB6KExqYXZh" +
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"L2xhbmcvaW52b2tlL01ldGhvZEhhbmRsZXMkTG9va3VwO0xqYXZhL2xhbmcvU3RyaW5nO0xqYXZhL2xh" +
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"bmcvT2JqZWN0O0xqYXZhL2xhbmcvT2JqZWN0OylMamF2YS9sYW5nL2ludm9rZS9DYWxsU2l0ZTsBAAlE" +
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"VU1NWV9BUkcIADEMAC0ALgoAEQAzDwYANAEABG5hbWUBABJMamF2YS9sYW5nL1N0cmluZzsMADYANxEA" +
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"AAA4EQABADgMAC8AMAoAEQA7DwYAPAwANgALEgACAD4SAAEAPgEAEEJvb3RzdHJhcE1ldGhvZHMAAAAR" +
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"AAIAAAAAAAcAAQADAAQAAQAHAAAAEQABAAEAAAAFKrcABrEAAAAAAAkAHgAfAAEABwAAAEIAAgACAAAA" +
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"JioDMrYADUwrEg+mAAe4ABSxKxIWpgAHuAAYsSsSGqYAB7gAHLGxAAAAAQAdAAAACgAD/AARBwAJCQkA" +
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"CQAtAC4AAQAHAAAALQAEAAQAAAAYLMEAIQOfABG7ACNZEgkruAAptwAssCuwAAAAAQAdAAAAAwABFgAJ" +
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"AC8AMAABAAcAAAAaAAQABAAAAA67ACNZEgkruAAptwAssAAAAAAACQAOABIAAQAHAAAADwABAAAAAAAD" +
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"EjqwAAAAAAAJABUAEgABAAcAAAASAAEAAAAAAAa6AD8AALAAAAAAAAkAGQASAAEABwAAABIAAQAAAAAA" +
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"BroAQAAAsAAAAAAAAQBBAAAAFAADADUAAQAyADUAAQA6AD0AAQA6";
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static final MethodHandles.Lookup L = MethodHandles.lookup();
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static final Class[] THROWABLES = {InvocationTargetException.class, StackOverflowError.class};
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Class<?> c;
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public static byte[] generator() throws Exception {
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String genClassName = L.lookupClass().getSimpleName() + "_Code";
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String bsmDescriptor = MethodType.methodType(Object.class, MethodHandles.Lookup.class, String.class, Object.class, Object.class).toMethodDescriptorString();
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String bsmIndyDescriptor = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class, Object.class, Object.class).toMethodDescriptorString();
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byte[] byteArray = new BasicClassBuilder(genClassName, 55, 0)
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.withSuperclass("java/lang/Object")
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.withMethod("<init>", "()V", M ->
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M.withFlags(Flag.ACC_PUBLIC)
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.withCode(TypedCodeBuilder::new, C ->
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C.aload_0().invokespecial("java/lang/Object", "<init>", "()V", false).return_()
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))
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.withMethod("main", "([Ljava/lang/String;)V", M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C -> {
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C.aload_0().iconst_0().aaload();
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C.invokevirtual("java/lang/String", "intern", "()Ljava/lang/String;", false);
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C.astore_1();
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C.aload_1();
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C.ldc("condy_bsm_condy_bsm");
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C.ifcmp(TypeTag.A, MacroCodeBuilder.CondKind.NE, "CASE1");
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C.invokestatic(genClassName, "condy_bsm_condy_bsm", "()Ljava/lang/Object;", false).return_();
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C.label("CASE1");
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C.aload_1();
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C.ldc("indy_bsmIndy_condy_bsm");
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C.ifcmp(TypeTag.A, MacroCodeBuilder.CondKind.NE, "CASE2");
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C.invokestatic(genClassName, "indy_bsmIndy_condy_bsm", "()Ljava/lang/Object;", false).return_();
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C.label("CASE2");
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C.aload_1();
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C.ldc("indy_bsm_condy_bsm");
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C.ifcmp(TypeTag.A, MacroCodeBuilder.CondKind.NE, "CASE3");
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C.invokestatic(genClassName, "indy_bsm_condy_bsm", "()Ljava/lang/Object;", false).return_();
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C.label("CASE3");
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C.return_();
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}))
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.withMethod("bsm", bsmDescriptor, M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C -> {
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C.aload_2();
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C.instanceof_("java/lang/invoke/MethodType");
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C.iconst_0();
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C.ifcmp(TypeTag.I, MacroCodeBuilder.CondKind.EQ, "CONDY");
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C.new_("java/lang/invoke/ConstantCallSite").dup();
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C.ldc("java/lang/String", PoolHelper::putClass);
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C.aload_1();
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C.invokestatic("java/lang/invoke/MethodHandles", "constant", "(Ljava/lang/Class;Ljava/lang/Object;)Ljava/lang/invoke/MethodHandle;", false);
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C.invokespecial("java/lang/invoke/ConstantCallSite", "<init>", "(Ljava/lang/invoke/MethodHandle;)V", false);
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C.areturn();
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C.label("CONDY");
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C.aload_1().areturn();
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}))
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.withMethod("bsmIndy", bsmIndyDescriptor, M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C -> {
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C.new_("java/lang/invoke/ConstantCallSite").dup();
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C.ldc("java/lang/String", PoolHelper::putClass);
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C.aload_1();
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C.invokestatic("java/lang/invoke/MethodHandles", "constant", "(Ljava/lang/Class;Ljava/lang/Object;)Ljava/lang/invoke/MethodHandle;", false);
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C.invokespecial("java/lang/invoke/ConstantCallSite", "<init>", "(Ljava/lang/invoke/MethodHandle;)V", false);
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C.areturn();
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}))
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.withMethod("condy_bsm_condy_bsm", "()Ljava/lang/Object;", M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C ->
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C.ldc("name", "Ljava/lang/String;", genClassName, "bsm", bsmDescriptor,
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S -> S.add(null, (P, v) -> {
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return P.putDynamicConstant("name", "Ljava/lang/String;", genClassName, "bsm", bsmDescriptor,
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S2 -> S2.add("DUMMY_ARG", PoolHelper::putString));
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}))
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.areturn()))
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.withMethod("indy_bsmIndy_condy_bsm", "()Ljava/lang/Object;", M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C ->
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C.invokedynamic("name", "()Ljava/lang/String;", genClassName, "bsmIndy", bsmIndyDescriptor,
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S -> S.add(null, (P, v) -> {
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return P.putDynamicConstant("name", "Ljava/lang/String;", genClassName, "bsm", bsmDescriptor,
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S2 -> S2.add("DUMMY_ARG", PoolHelper::putString));
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}))
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.areturn()))
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.withMethod("indy_bsm_condy_bsm", "()Ljava/lang/Object;", M ->
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M.withFlags(Flag.ACC_PUBLIC, Flag.ACC_STATIC)
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.withCode(TypedCodeBuilder::new, C ->
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C.invokedynamic("name", "()Ljava/lang/String;", genClassName, "bsm", bsmDescriptor,
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S -> S.add(null, (P, v) -> {
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return P.putDynamicConstant("name", "Ljava/lang/String;", genClassName, "bsm", bsmDescriptor,
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S2 -> S2.add("DUMMY_ARG", PoolHelper::putString));
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}))
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.areturn()))
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.build();
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File f = new File(genClassName + ".class");
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if (f.getParentFile() != null) {
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f.getParentFile().mkdirs();
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}
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new FileOutputStream(f).write(byteArray);
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return byteArray;
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}
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static void test(Method m, Class<? extends Throwable>... ts) {
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Throwable caught = null;
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try {
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m.invoke(null);
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}
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catch (Throwable t) {
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caught = t;
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}
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if (caught == null) {
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Assert.fail("Throwable expected");
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}
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String actualMessage = null;
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for (int i = 0; i < ts.length; i++) {
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actualMessage = caught.getMessage();
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Assert.assertNotNull(caught);
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Assert.assertTrue(ts[i].isAssignableFrom(caught.getClass()));
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caught = caught.getCause();
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}
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}
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@BeforeClass
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public void generateClass() throws Exception {
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byte[] ba = Base64.getDecoder().decode(CLASS_CondyNestedTest_Code);
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ClassLoader l = new ClassLoader(CondyReturnPrimitiveTest.class.getClassLoader()) {
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@Override
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protected Class<?> findClass(String name) throws ClassNotFoundException {
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if (name == "CondyNestedTest_Code") {
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return defineClass(name, ba, 0, ba.length);
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}
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return null;
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}
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};
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c = l.loadClass("CondyNestedTest_Code");
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}
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/**
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* Testing an ldc of a dynamic constant, C say, with a BSM whose static
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* argument is C.
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*/
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@Test
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public void testCondyBsmCondyBsm() throws Exception {
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test("condy_bsm_condy_bsm", THROWABLES);
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}
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/**
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* Testing an invokedynamic with a BSM whose static argument is a constant
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* dynamic, C say, with a BSM whose static argument is C.
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*/
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@Test
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public void testIndyBsmIndyCondyBsm() throws Exception {
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test("indy_bsmIndy_condy_bsm", THROWABLES);
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}
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/**
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* Testing an invokedynamic with a BSM, B say, whose static argument is
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* a dynamic constant, C say, that uses BSM B.
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*/
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@Test
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public void testIndyBsmCondyBsm() throws Exception {
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test("indy_bsm_condy_bsm", THROWABLES);
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}
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void test(String methodName, Class<? extends Throwable>... ts) throws Exception {
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Method m = c.getMethod(methodName);
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m.setAccessible(true);
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test(m, ts);
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}
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}
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