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   7  * published by the Free Software Foundation.
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  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).
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  23 
  24 /*
  25  * @test
  26  * @bug 8144355 8144062 8176709 8194070
  27  * @summary Test aliasing additions to ZipFileSystem for multi-release jar files
  28  * @library /lib/testlibrary/java/util/jar
  29  * @build Compiler JarBuilder CreateMultiReleaseTestJars
  30  * @run testng MultiReleaseJarTest
  31  * @modules jdk.compiler
  32  *          jdk.jartool
  33  *          jdk.zipfs
  34  */
  35 
  36 import java.io.IOException;
  37 import java.lang.invoke.MethodHandle;
  38 import java.lang.invoke.MethodHandles;
  39 import java.lang.invoke.MethodType;
  40 import java.lang.Runtime.Version;
  41 import java.net.URI;
  42 import java.nio.file.*;
  43 import java.util.HashMap;
  44 import java.util.Map;
  45 import java.util.concurrent.atomic.AtomicInteger;
  46 
  47 import org.testng.Assert;
  48 import org.testng.annotations.*;
  49 
  50 public class MultiReleaseJarTest {
  51     final private int MAJOR_VERSION = Runtime.version().major();
  52 
  53     final private String userdir = System.getProperty("user.dir",".");
  54     final private CreateMultiReleaseTestJars creator =  new CreateMultiReleaseTestJars();
  55     final private Map<String,String> stringEnv = new HashMap<>();
  56     final private Map<String,Integer> integerEnv = new HashMap<>();
  57     final private Map<String,Version> versionEnv = new HashMap<>();
  58     final private String className = "version.Version";
  59     final private MethodType mt = MethodType.methodType(int.class);
  60 
  61     private String entryName;
  62     private URI uvuri;
  63     private URI mruri;
  64     private URI smruri;
  65 
  66     @BeforeClass
  67     public void initialize() throws Exception {
  68         creator.compileEntries();
  69         creator.buildUnversionedJar();
  70         creator.buildMultiReleaseJar();
  71         creator.buildShortMultiReleaseJar();
  72         String ssp = Paths.get(userdir, "unversioned.jar").toUri().toString();
  73         uvuri = new URI("jar", ssp , null);
  74         ssp = Paths.get(userdir, "multi-release.jar").toUri().toString();
  75         mruri = new URI("jar", ssp, null);
  76         ssp = Paths.get(userdir, "short-multi-release.jar").toUri().toString();
  77         smruri = new URI("jar", ssp, null);
  78         entryName = className.replace('.', '/') + ".class";
  79     }
  80 
  81     public void close() throws IOException {
  82         Files.delete(Paths.get(userdir, "unversioned.jar"));
  83         Files.delete(Paths.get(userdir, "multi-release.jar"));
  84         Files.delete(Paths.get(userdir, "short-multi-release.jar"));
  85     }
  86 
  87     @DataProvider(name="strings")
  88     public Object[][] createStrings() {
  89         return new Object[][]{
  90                 {"runtime", MAJOR_VERSION},
  91                 {"-20", 8},
  92                 {"0", 8},
  93                 {"8", 8},
  94                 {"9", 9},
  95                 {Integer.toString(MAJOR_VERSION), MAJOR_VERSION},
  96                 {Integer.toString(MAJOR_VERSION+1), MAJOR_VERSION},
  97                 {"50", MAJOR_VERSION}
  98         };
  99     }
 100 
 101     @DataProvider(name="integers")
 102     public Object[][] createIntegers() {
 103         return new Object[][] {
 104                 {new Integer(-5), 8},
 105                 {new Integer(0), 8},
 106                 {new Integer(8), 8},
 107                 {new Integer(9), 9},
 108                 {new Integer(MAJOR_VERSION), MAJOR_VERSION},
 109                 {new Integer(MAJOR_VERSION + 1), MAJOR_VERSION},
 110                 {new Integer(100), MAJOR_VERSION}
 111         };
 112     }
 113 
 114     @DataProvider(name="versions")
 115     public Object[][] createVersions() {
 116         return new Object[][] {
 117                 {Version.parse("8"),    8},
 118                 {Version.parse("9"),    9},
 119                 {Version.parse("11"),  MAJOR_VERSION},
 120                 {Version.parse("100"), MAJOR_VERSION}
 121         };
 122     }
 123 
 124     // Not the best test but all I can do since ZipFileSystem and JarFileSystem
 125     // are not public, so I can't use (fs instanceof ...)
 126     @Test
 127     public void testNewFileSystem() throws Exception {
 128         Map<String,String> env = new HashMap<>();
 129         // no configuration, treat multi-release jar as unversioned
 130         try (FileSystem fs = FileSystems.newFileSystem(mruri, env)) {
 131             Assert.assertTrue(readAndCompare(fs, 8));
 132         }
 133         env.put("multi-release", "runtime");
 134         // a configuration and jar file is multi-release
 135         try (FileSystem fs = FileSystems.newFileSystem(mruri, env)) {
 136             Assert.assertTrue(readAndCompare(fs, MAJOR_VERSION));
 137         }
 138         // a configuration but jar file is unversioned
 139         try (FileSystem fs = FileSystems.newFileSystem(uvuri, env)) {
 140             Assert.assertTrue(readAndCompare(fs, 8));
 141         }
 142     }
 143 
 144     private boolean readAndCompare(FileSystem fs, int expected) throws IOException {
 145         Path path = fs.getPath("version/Version.java");
 146         String src = new String(Files.readAllBytes(path));
 147         return src.contains("return " + expected);
 148     }
 149 
 150     @Test(dataProvider="strings")
 151     public void testStrings(String value, int expected) throws Throwable {
 152         stringEnv.put("multi-release", value);
 153         runTest(stringEnv, expected);
 154     }
 155 
 156     @Test(dataProvider="integers")
 157     public void testIntegers(Integer value, int expected) throws Throwable {
 158         integerEnv.put("multi-release", value);
 159         runTest(integerEnv, expected);
 160     }
 161 
 162     @Test(dataProvider="versions")
 163     public void testVersions(Version value, int expected) throws Throwable {
 164         versionEnv.put("multi-release", value);
 165         runTest(versionEnv, expected);
 166     }
 167 
 168     @Test
 169     public void testShortJar() throws Throwable {
 170         integerEnv.put("multi-release", Integer.valueOf(MAJOR_VERSION));
 171         runTest(smruri, integerEnv, MAJOR_VERSION);
 172         integerEnv.put("multi-release", Integer.valueOf(9));
 173         runTest(smruri, integerEnv, 8);
 174     }
 175 
 176     private void runTest(Map<String,?> env, int expected) throws Throwable {
 177         runTest(mruri, env, expected);
 178     }
 179 
 180     private void runTest(URI uri, Map<String,?> env, int expected) throws Throwable {
 181         try (FileSystem fs = FileSystems.newFileSystem(uri, env)) {
 182             Path version = fs.getPath(entryName);
 183             byte [] bytes = Files.readAllBytes(version);
 184             Class<?> vcls = (new ByteArrayClassLoader(fs)).defineClass(className, bytes);
 185             MethodHandle mh = MethodHandles.lookup().findVirtual(vcls, "getVersion", mt);
 186             Assert.assertEquals((int)mh.invoke(vcls.newInstance()), expected);
 187         }
 188     }
 189 
 190     @Test
 191     public void testIsMultiReleaseJar() throws Exception {
 192         // Re-examine commented out tests as part of JDK-8176843
 193         testCustomMultiReleaseValue("true", true);
 194         testCustomMultiReleaseValue("true\r\nOther: value", true);
 195         testCustomMultiReleaseValue("true\nOther: value", true);
 196         //testCustomMultiReleaseValue("true\rOther: value", true);
 197 
 198         testCustomMultiReleaseValue("false", false);
 199         testCustomMultiReleaseValue(" true", false);
 200         testCustomMultiReleaseValue("true ", false);
 201         //testCustomMultiReleaseValue("true\n ", false);
 202         //testCustomMultiReleaseValue("true\r ", false);
 203         //testCustomMultiReleaseValue("true\n true", false);
 204         //testCustomMultiReleaseValue("true\r\n true", false);
 205     }
 206 
 207     private static final AtomicInteger JAR_COUNT = new AtomicInteger(0);
 208 
 209     private void testCustomMultiReleaseValue(String value, boolean expected)
 210             throws Exception {
 211         String fileName = "custom-mr" + JAR_COUNT.incrementAndGet() + ".jar";
 212         creator.buildCustomMultiReleaseJar(fileName, value, Map.of(),
 213                 /*addEntries*/true);
 214 
 215         Map<String,String> env = Map.of("multi-release", "runtime");
 216         Path filePath = Paths.get(userdir, fileName);
 217         String ssp = filePath.toUri().toString();
 218         URI customJar = new URI("jar", ssp , null);
 219         try (FileSystem fs = FileSystems.newFileSystem(customJar, env)) {
 220             if (expected) {
 221                 Assert.assertTrue(readAndCompare(fs, MAJOR_VERSION));
 222             } else {
 223                 Assert.assertTrue(readAndCompare(fs, 8));
 224             }
 225         }
 226         Files.delete(filePath);
 227     }
 228 
 229     private static class ByteArrayClassLoader extends ClassLoader {
 230         final private FileSystem fs;
 231 
 232         ByteArrayClassLoader(FileSystem fs) {
 233             super(null);
 234             this.fs = fs;
 235         }
 236 
 237         @Override
 238         public Class<?> loadClass(String name) throws ClassNotFoundException {
 239             try {
 240                 return super.loadClass(name);
 241             } catch (ClassNotFoundException x) {}
 242             Path cls = fs.getPath(name.replace('.', '/') + ".class");
 243             try {
 244                 byte[] bytes = Files.readAllBytes(cls);
 245                 return defineClass(name, bytes);
 246             } catch (IOException x) {
 247                 throw new ClassNotFoundException(x.getMessage());
 248             }
 249         }
 250 
 251         public Class<?> defineClass(String name, byte[] bytes) throws ClassNotFoundException {
 252             if (bytes == null) throw new ClassNotFoundException("No bytes for " + name);
 253             return defineClass(name, bytes, 0, bytes.length);
 254         }
 255     }
 256 }