1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8156499
  27  * @summary Test image creation from Multi-Release JAR
  28  * @author Steve Drach
  29  * @library /lib/testlibrary
  30  * @modules java.base/jdk.internal.jimage
  31  *          jdk.jartool/sun.tools.jar
  32  *          jdk.jlink/jdk.tools.jlink.internal
  33  * @build CompilerUtils
  34  * @run testng JLinkMultiReleaseJarTest
  35 */
  36 
  37 import java.io.IOException;
  38 import java.io.PrintWriter;
  39 import java.lang.invoke.MethodHandle;
  40 import java.lang.invoke.MethodHandles;
  41 import java.lang.invoke.MethodType;
  42 import java.nio.file.FileVisitResult;
  43 import java.nio.file.Files;
  44 import java.nio.file.Path;
  45 import java.nio.file.Paths;
  46 import java.nio.file.SimpleFileVisitor;
  47 import java.nio.file.attribute.BasicFileAttributes;
  48 import java.util.jar.JarFile;
  49 
  50 import jdk.internal.jimage.BasicImageReader;
  51 
  52 import org.testng.Assert;
  53 import org.testng.annotations.AfterClass;
  54 import org.testng.annotations.BeforeClass;
  55 import org.testng.annotations.Test;
  56 
  57 public class JLinkMultiReleaseJarTest {
  58     private Path userdir;
  59     private Path javahome;
  60 
  61     @BeforeClass
  62     public void initialize() throws IOException {
  63         Path srcdir = Paths.get(System.getProperty("test.src"));
  64         userdir = Paths.get(System.getProperty("user.dir", "."));
  65         javahome = Paths.get(System.getProperty("java.home"));
  66 
  67         // create class files from source
  68         Path base = srcdir.resolve("base");
  69         Path basemods = userdir.resolve("basemods");
  70         CompilerUtils.compile(base, basemods, "-modulesourcepath", base.toString());
  71 
  72         Path rt = srcdir.resolve("rt");
  73         Path rtmods = userdir.resolve("rtmods");
  74         CompilerUtils.compile(rt, rtmods, "-modulesourcepath", rt.toString());
  75 
  76         // build multi-release jar file
  77         sun.tools.jar.Main jartool = new sun.tools.jar.Main(System.out, System.err, "jar");
  78         String args = "-cf m1.jar -C basemods/m1 . --release "
  79                 + JarFile.runtimeVersion().major() + " -C rtmods/m1 .";
  80         jartool.run(args.split(" +"));
  81     }
  82 
  83     @AfterClass
  84     public void close() throws IOException {
  85         Files.walkFileTree(userdir, new SimpleFileVisitor<>() {
  86             @Override
  87             public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
  88                     throws IOException
  89             {
  90                 Files.delete(file);
  91                 return FileVisitResult.CONTINUE;
  92             }
  93             @Override
  94             public FileVisitResult postVisitDirectory(Path dir, IOException e)
  95                     throws IOException
  96             {
  97                 if (dir.equals(userdir)) {
  98                     return FileVisitResult.CONTINUE;
  99                 }
 100                 if (e == null) {
 101                     Files.delete(dir);
 102                     return FileVisitResult.CONTINUE;
 103                 } else {
 104                     // directory iteration failed
 105                     throw e;
 106                 }
 107             }
 108         });
 109     }
 110 
 111     @Test
 112     public void test() throws Throwable {
 113         // use jlink to build image from multi-release jar
 114         String args = "--output myimage --addmods m1 --modulepath m1.jar:"
 115                 + javahome + "/jmods";
 116         int exitCode = jdk.tools.jlink.internal.Main.run(args.split(" +"),
 117                 new PrintWriter(System.out));
 118         Assert.assertEquals(exitCode, 0);
 119 
 120         // validate image
 121         Path jimage = userdir.resolve("myimage").resolve("lib").resolve("modules");
 122         BasicImageReader reader = BasicImageReader.open(jimage);
 123         byte[] b = reader.getResource("/m1/p/Main.class");
 124         Class<?> clazz = (new ByteArrayClassLoader()).loadClass("p.Main", b);
 125         MethodHandle getVersion = MethodHandles.lookup()
 126                 .findVirtual(clazz, "getVersion", MethodType.methodType(int.class));
 127         int version = (int)getVersion.invoke(clazz.getConstructor().newInstance());
 128         Assert.assertEquals(version, JarFile.runtimeVersion().major());
 129     }
 130 
 131     private static class ByteArrayClassLoader extends ClassLoader {
 132         public Class<?> loadClass(String name, byte[] bytes) {
 133             return defineClass(name, bytes, 0, bytes.length);
 134         }
 135     }
 136 }