| /* |
| * Copyright (c) 2015, 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 Test StripDebugPlugin |
| * @author Jean-Francois Denise |
| * @library ../../lib |
| * @build tests.* |
| * @modules java.base/jdk.internal.jimage |
| * jdk.jlink/jdk.tools.jlink.internal |
| * jdk.jlink/jdk.tools.jlink.internal.plugins |
| * jdk.jlink/jdk.tools.jlink.plugin |
| * jdk.jlink/jdk.tools.jimage |
| * jdk.jlink/jdk.tools.jmod |
| * jdk.jdeps/com.sun.tools.classfile |
| * jdk.compiler |
| * @run main StripDebugPluginTest |
| */ |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.stream.Stream; |
| |
| import com.sun.tools.classfile.Attribute; |
| import com.sun.tools.classfile.ClassFile; |
| import com.sun.tools.classfile.Code_attribute; |
| import com.sun.tools.classfile.ConstantPoolException; |
| import com.sun.tools.classfile.Method; |
| import java.util.HashMap; |
| import java.util.Map; |
| import jdk.tools.jlink.internal.ResourcePoolManager; |
| import jdk.tools.jlink.internal.plugins.StripDebugPlugin; |
| import jdk.tools.jlink.plugin.ResourcePoolEntry; |
| import jdk.tools.jlink.plugin.ResourcePool; |
| import jdk.tools.jlink.plugin.Plugin; |
| import tests.Helper; |
| |
| public class StripDebugPluginTest { |
| public static void main(String[] args) throws Exception { |
| new StripDebugPluginTest().test(); |
| } |
| |
| public void test() throws Exception { |
| // JPRT not yet ready for jmods |
| Helper helper = Helper.newHelper(); |
| if (helper == null) { |
| System.err.println("Test not run, NO jmods directory"); |
| return; |
| } |
| |
| List<String> classes = Arrays.asList("toto.Main", "toto.com.foo.bar.X"); |
| Path moduleFile = helper.generateModuleCompiledClasses( |
| helper.getJmodSrcDir(), helper.getJmodClassesDir(), "leaf1", classes); |
| Path moduleInfo = moduleFile.resolve("module-info.class"); |
| |
| // Classes have been compiled in debug. |
| List<Path> covered = new ArrayList<>(); |
| byte[] infoContent = Files.readAllBytes(moduleInfo); |
| try (Stream<Path> stream = Files.walk(moduleFile)) { |
| for (Iterator<Path> iterator = stream.iterator(); iterator.hasNext(); ) { |
| Path p = iterator.next(); |
| if (Files.isRegularFile(p) && p.toString().endsWith(".class")) { |
| byte[] content = Files.readAllBytes(p); |
| String path = "/" + helper.getJmodClassesDir().relativize(p).toString(); |
| String moduleInfoPath = path + "/module-info.class"; |
| check(path, content, moduleInfoPath, infoContent); |
| covered.add(p); |
| } |
| } |
| } |
| if (covered.isEmpty()) { |
| throw new AssertionError("No class to compress"); |
| } else { |
| System.err.println("removed debug attributes from " |
| + covered.size() + " classes"); |
| } |
| } |
| |
| private void check(String path, byte[] content, String infoPath, byte[] moduleInfo) throws Exception { |
| path = path.replace('\\', '/'); |
| StripDebugPlugin debug = new StripDebugPlugin(); |
| debug.configure(new HashMap<>()); |
| ResourcePoolEntry result1 = stripDebug(debug, ResourcePoolEntry.create(path,content), path, infoPath, moduleInfo); |
| |
| if (!path.endsWith("module-info.class")) { |
| if (result1.contentLength() >= content.length) { |
| throw new AssertionError("Class size not reduced, debug info not " |
| + "removed for " + path); |
| } |
| checkDebugAttributes(result1.contentBytes()); |
| } |
| |
| ResourcePoolEntry result2 = stripDebug(debug, result1, path, infoPath, moduleInfo); |
| if (result1.contentLength() != result2.contentLength()) { |
| throw new AssertionError("removing debug info twice reduces class size of " |
| + path); |
| } |
| checkDebugAttributes(result1.contentBytes()); |
| } |
| |
| private ResourcePoolEntry stripDebug(Plugin debug, ResourcePoolEntry classResource, |
| String path, String infoPath, byte[] moduleInfo) throws Exception { |
| ResourcePoolManager resources = new ResourcePoolManager(); |
| resources.add(classResource); |
| if (!path.endsWith("module-info.class")) { |
| ResourcePoolEntry res2 = ResourcePoolEntry.create(infoPath, moduleInfo); |
| resources.add(res2); |
| } |
| ResourcePoolManager results = new ResourcePoolManager(); |
| ResourcePool resPool = debug.transform(resources.resourcePool(), |
| results.resourcePoolBuilder()); |
| System.out.println(classResource.path()); |
| |
| return resPool.findEntry(classResource.path()).get(); |
| } |
| |
| private void checkDebugAttributes(byte[] strippedClassFile) throws IOException, ConstantPoolException { |
| ClassFile classFile = ClassFile.read(new ByteArrayInputStream(strippedClassFile)); |
| String[] debugAttributes = new String[]{ |
| Attribute.LineNumberTable, |
| Attribute.LocalVariableTable, |
| Attribute.LocalVariableTypeTable |
| }; |
| for (Method method : classFile.methods) { |
| String methodName = method.getName(classFile.constant_pool); |
| Code_attribute code = (Code_attribute) method.attributes.get(Attribute.Code); |
| for (String attr : debugAttributes) { |
| if (code.attributes.get(attr) != null) { |
| throw new AssertionError("Debug attribute was not removed: " + attr + |
| " from method " + classFile.getName() + "#" + methodName); |
| } |
| } |
| } |
| } |
| } |