| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.maven.plugin.compiler; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.maven.plugin.logging.Log; |
| import org.objectweb.asm.ClassReader; |
| import org.objectweb.asm.ClassVisitor; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.ModuleVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| /** |
| * {@code module-info.class} bytecode transformer for |
| * <a href="https://issues.apache.org/jira/browse/MCOMPILER-542">MCOMPILER-542</a>: |
| * drops detailed JDK version. |
| */ |
| final class ModuleInfoTransformer { |
| |
| private ModuleInfoTransformer() {} |
| |
| static byte[] transform(byte[] originalBytecode, String javaVersion, Log log) { |
| List<String> modulesModified = new ArrayList<>(); |
| Set<String> foundVersions = new HashSet<>(); |
| ClassReader reader = new ClassReader(originalBytecode); |
| ClassWriter writer = new ClassWriter(0); |
| |
| ClassVisitor classVisitor = new ClassVisitor(Opcodes.ASM9, writer) { |
| @Override |
| public ModuleVisitor visitModule(String name, int access, String version) { |
| ModuleVisitor originalModuleVisitor = super.visitModule(name, access, version); |
| return new ModuleVisitor(Opcodes.ASM9, originalModuleVisitor) { |
| @Override |
| public void visitRequire(String module, int access, String version) { |
| // Check if the module name matches the java/jdk modules |
| if (version != null && (module.startsWith("java.") || module.startsWith("jdk."))) { |
| // Patch the version from the java.* and jdk.* modules |
| // with the --release N version. |
| super.visitRequire(module, access, javaVersion); |
| foundVersions.add(version); |
| modulesModified.add(module); |
| } else { |
| // Keep the original require statement |
| super.visitRequire(module, access, version); |
| } |
| } |
| }; |
| } |
| }; |
| |
| reader.accept(classVisitor, 0); |
| |
| if (modulesModified.isEmpty()) { |
| return null; |
| } |
| |
| log.info(String.format( |
| "JDK-8318913 workaround: patched module-info.class requires version from %s to [%s] on %d JDK modules %s", |
| foundVersions, javaVersion, modulesModified.size(), modulesModified)); |
| |
| return writer.toByteArray(); |
| } |
| } |