Java Code Examples for java.net.URLClassLoader

The following examples show how to use java.net.URLClassLoader. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: triplea   Source File: AvailableGames.java    License: GNU General Public License v3.0 6 votes vote down vote up
private static Map<String, URI> getGamesFromZip(final File map) {
  final Map<String, URI> availableGames = new HashMap<>();

  try (InputStream fis = new FileInputStream(map);
      ZipInputStream zis = new ZipInputStream(fis);
      URLClassLoader loader = new URLClassLoader(new URL[] {map.toURI().toURL()})) {
    ZipEntry entry = zis.getNextEntry();
    while (entry != null) {
      if (entry.getName().contains("games/") && entry.getName().toLowerCase().endsWith(".xml")) {
        final URL url = loader.getResource(entry.getName());
        if (url != null) {
          availableGames.putAll(
              getAvailableGames(URI.create(url.toString().replace(" ", "%20"))));
        }
      }
      // we have to close the loader to allow files to be deleted on windows
      zis.closeEntry();
      entry = zis.getNextEntry();
    }
  } catch (final IOException e) {
    log.log(Level.SEVERE, "Error reading zip file in: " + map.getAbsolutePath(), e);
  }
  return availableGames;
}
 
Example 2
public static void main(String args[]) throws Exception {
    // create files from given arguments and tools.jar
    File f1 = new File(args[0]);
    String home = System.getProperty("java.home");
    String tools = ".." + File.separatorChar + "lib" +
        File.separatorChar + "tools.jar";
    File f2 = (new File(home, tools)).getCanonicalFile();

    // create class loader
    URL[] urls = { f1.toURL(), f2.toURL() };
    URLClassLoader cl = new URLClassLoader(urls);

    // load ListConnectors using the class loader
    // and then invoke the list method.
    Class c = Class.forName("ListConnectors", true, cl);
    Method m = c.getDeclaredMethod("list");
    Object o = c.newInstance();
    m.invoke(o);
}
 
Example 3
Source Project: jdk8u-jdk   Source File: Main.java    License: GNU General Public License v2.0 6 votes vote down vote up
private ContentSigner loadSigningMechanism(String signerClassName,
    String signerClassPath) throws Exception {

    // construct class loader
    String cpString = null;   // make sure env.class.path defaults to dot

    // do prepends to get correct ordering
    cpString = PathList.appendPath(System.getProperty("env.class.path"), cpString);
    cpString = PathList.appendPath(System.getProperty("java.class.path"), cpString);
    cpString = PathList.appendPath(signerClassPath, cpString);
    URL[] urls = PathList.pathToURLs(cpString);
    ClassLoader appClassLoader = new URLClassLoader(urls);

    // attempt to find signer
    Class<?> signerClass = appClassLoader.loadClass(signerClassName);

    // Check that it implements ContentSigner
    Object signer = signerClass.newInstance();
    if (!(signer instanceof ContentSigner)) {
        MessageFormat form = new MessageFormat(
            rb.getString("signerClass.is.not.a.signing.mechanism"));
        Object[] source = {signerClass.getName()};
        throw new IllegalArgumentException(form.format(source));
    }
    return (ContentSigner)signer;
}
 
Example 4
Source Project: hottub   Source File: SchemaGenerator.java    License: GNU General Public License v2.0 6 votes vote down vote up
private static String setClasspath(String givenClasspath) {
    StringBuilder cp = new StringBuilder();
    appendPath(cp, givenClasspath);
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    while (cl != null) {
        if (cl instanceof URLClassLoader) {
            for (URL url : ((URLClassLoader) cl).getURLs()) {
                appendPath(cp, url.getPath());
            }
        }
        cl = cl.getParent();
    }

    appendPath(cp, findJaxbApiJar());
    return cp.toString();
}
 
Example 5
public static void main(String[] args) throws Exception {

        File file = new File(BASE);
        URL[] urls = new URL[1];
        urls[0] = file.toURI().toURL();
        URLClassLoader ucl = new URLClassLoader(urls);
        Class<?> c = ucl.loadClass("MyTransform");
        Constructor<?> cons = c.getConstructor(new Class[] {});
        Object o = cons.newInstance();
        // Apache code swallows the ClassNotFoundExc, so we need to
        // check if the Transform has already been registered by registering
        // it again and catching an AlgorithmAlreadyRegisteredExc
        try {
            Transform.register(MyTransform.URI, "MyTransform");
            throw new Exception("ClassLoaderTest failed");
        } catch (AlgorithmAlreadyRegisteredException e) {
            // test passed
        }
    }
 
Example 6
Source Project: gridgo   Source File: AbstractTest.java    License: MIT License 6 votes vote down vote up
public void init() throws Exception {
    System.out.println("init...");
    // Provide the URL corresponding to the folder that contains the class
    // `javassist.MyClass`
    this.cl = new URLClassLoader(new URL[] { new File("target/classes").toURI().toURL(),
            new File("target/test-classes").toURI().toURL() }) {

        protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
            try {
                // Try to find the class for this CL
                return findClass(name);
            } catch (ClassNotFoundException e) {
                // Could not find the class so load it from the parent
                return super.loadClass(name, resolve);
            }
        }
    };
    // Get the current context CL and store it into old
    this.old = Thread.currentThread().getContextClassLoader();
    // Set the custom CL as new context CL
    Thread.currentThread().setContextClassLoader(cl);
}
 
Example 7
Source Project: cxf   Source File: JAXRSContainerTest.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testOnewayMethod() throws Exception {
    JAXRSContainer container = new JAXRSContainer(null);

    final String onewayMethod = "deleteRepository";
    ToolContext context = new ToolContext();
    context.put(WadlToolConstants.CFG_OUTPUTDIR, output.getCanonicalPath());
    context.put(WadlToolConstants.CFG_WADLURL, getLocation("/wadl/test.xml"));
    context.put(WadlToolConstants.CFG_COMPILE, "true");
    context.put(WadlToolConstants.CFG_ONEWAY, onewayMethod);
    container.setContext(context);
    container.execute();

    assertNotNull(output.list());

    ClassCollector cc = context.get(ClassCollector.class);
    assertEquals(1, cc.getServiceClassNames().size());
    try (URLClassLoader loader = new URLClassLoader(new URL[]{output.toURI().toURL()})) {
        final Class<?> generatedClass = loader.loadClass(cc.getServiceClassNames().values().iterator().next());
        Method m = generatedClass.getMethod(onewayMethod, String.class);
        assertNotNull(m.getAnnotation(Oneway.class));
    }
}
 
Example 8
Source Project: AVM   Source File: ReflectionBenchmarkUniqueAccessTest.java    License: MIT License 6 votes vote down vote up
private long uniqueInstanceMethodHandleInstanceFieldReadAccessInvokeExactOnly(int spins) throws Throwable {
    ReflectionTarget[] targets = new ReflectionTarget[spins];
    MethodHandle[] fields = new MethodHandle[spins];

    for (int i = 0; i < spins; i++) {
        ClassLoader loader = new URLClassLoader(new URL[]{ classpathDirectory.toURI().toURL() });
        Class<?> clazz = loader.loadClass(targetClassName);
        targets[i] = (ReflectionTarget) MethodHandles.lookup().findConstructor(clazz, MethodType.methodType(void.class)).invoke();
        fields[i] = MethodHandles.lookup().findGetter(clazz, instanceField, Object.class);
    }

    long start = System.nanoTime();
    for (int i = 0; i < spins; i++) {
        Object o = fields[i].invokeExact(targets[i]);
    }
    long end = System.nanoTime();
    return end - start;
}
 
Example 9
Source Project: j2cl   Source File: PackageInfoCache.java    License: Apache License 2.0 6 votes vote down vote up
public static void init(List<String> classPathEntries, Problems problems) {
  checkState(
      packageInfoCacheStorage.get() == null,
      "PackageInfoCache should only be initialized once per thread.");

  // Constructs a URLClassLoader to do the dirty work of finding package-info.class files in the
  // classpath of the compile.
  List<URL> classPathUrls = new ArrayList<>();
  for (String classPathEntry : classPathEntries) {
    try {
      classPathUrls.add(new URL("file:" + classPathEntry));
    } catch (MalformedURLException e) {
      problems.fatal(FatalError.CANNOT_OPEN_FILE, e.toString());
    }
  }
  URLClassLoader resourcesClassLoader =
      new URLClassLoader(
          Iterables.toArray(classPathUrls, URL.class), PackageInfoCache.class.getClassLoader());

  packageInfoCacheStorage.set(new PackageInfoCache(resourcesClassLoader, problems));
}
 
Example 10
Source Project: incubator-tez   Source File: TestTezClientUtils.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * 
 * @throws Exception
 */
@Test (timeout=5000)
public void validateSetTezJarLocalResourcesDefinedExistingDirectoryIgnored() throws Exception {
  URL[] cp = ((URLClassLoader)ClassLoader.getSystemClassLoader()).getURLs();
  StringBuffer buffer = new StringBuffer();
  for (URL url : cp) {
    buffer.append(url.toExternalForm());
    buffer.append(",");
  }
  TezConfiguration conf = new TezConfiguration();
  conf.set(TezConfiguration.TEZ_LIB_URIS, buffer.toString());
  conf.setBoolean(TezConfiguration.TEZ_IGNORE_LIB_URIS, true);
  Credentials credentials = new Credentials();
  Map<String, LocalResource> localizedMap = TezClientUtils.setupTezJarsLocalResources(conf, credentials);
  assertTrue(localizedMap.isEmpty());
}
 
Example 11
/**
 * Imitates class loading. Each invocation of this method causes a new class
 * loader object is created and a new class is loaded by this class loader.
 * Method throws OOM when run out of memory.
 */
static protected void loadNewClass() {
    try {
        String jarUrl = "file:" + (counter++) + ".jar";
        URL[] urls = new URL[]{new URL(jarUrl)};
        URLClassLoader cl = new URLClassLoader(urls);
        Proxy.newProxyInstance(
                cl,
                new Class[]{Foo.class},
                new FooInvocationHandler(new FooBar()));
    } catch (java.net.MalformedURLException badThing) {
        // should never occur
        System.err.println("Unexpected error: " + badThing);
        throw new RuntimeException(badThing);
    }
}
 
Example 12
Source Project: kogito-runtimes   Source File: ChangeSetTest.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testCustomClassLoader() throws Exception {
    // JBRULES-3630
    String absolutePath = new File("file").getAbsolutePath();

    URL url = ChangeSetTest.class.getResource(ChangeSetTest.class.getSimpleName() + ".class");
    AtomicReference<File> jar = new AtomicReference<>();
    assertTimeoutPreemptively(Duration.ofSeconds(10), () -> {
        File file = new File( url.toURI() );
        while ( true ) {
            file = file.getParentFile();
            File j = new File( file, "/src/test/resources/org/drools/compiler/compiler/xml/changeset/changeset.jar" );
            if ( j.exists() ) {
                jar.set(j);
                break;
            }
        }
    }, "JAR not found in time.");

    ClassLoader classLoader = URLClassLoader.newInstance(new URL[]{jar.get().toURI().toURL()}, getClass().getClassLoader());
    Resource changeSet = ResourceFactory.newClassPathResource("changeset1.xml", classLoader);
    KnowledgeBuilderConfiguration conf = KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(null, classLoader);
    KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder(conf);
    builder.add(changeSet, ResourceType.CHANGE_SET);
}
 
Example 13
Source Project: openjdk-jdk8u   Source File: B7050028.java    License: GNU General Public License v2.0 6 votes vote down vote up
public static void main(String[] args) throws Exception {
    URLConnection conn = B7050028.class.getResource("B7050028.class").openConnection();
    int len = conn.getContentLength();
    byte[] data = new byte[len];
    InputStream is = conn.getInputStream();
    is.read(data);
    is.close();
    conn.setDefaultUseCaches(false);
    File jar = File.createTempFile("B7050028", ".jar");
    jar.deleteOnExit();
    OutputStream os = new FileOutputStream(jar);
    ZipOutputStream zos = new ZipOutputStream(os);
    ZipEntry ze = new ZipEntry("B7050028.class");
    ze.setMethod(ZipEntry.STORED);
    ze.setSize(len);
    CRC32 crc = new CRC32();
    crc.update(data);
    ze.setCrc(crc.getValue());
    zos.putNextEntry(ze);
    zos.write(data, 0, len);
    zos.closeEntry();
    zos.finish();
    zos.close();
    os.close();
    System.out.println(new URLClassLoader(new URL[] {new URL("jar:" + jar.toURI() + "!/")}, ClassLoader.getSystemClassLoader().getParent()).loadClass(B7050028.class.getName()));
}
 
Example 14
Source Project: IoTgo_Android_App   Source File: Loader.java    License: MIT License 6 votes vote down vote up
/**
 * Generate the classpath (as a string) of all classloaders
 * above the given classloader.
 * 
 * This is primarily used for jasper.
 * @return the system class path
 */
public static String getClassPath(ClassLoader loader) throws Exception
{
    StringBuilder classpath=new StringBuilder();
    while (loader != null && (loader instanceof URLClassLoader))
    {
        URL[] urls = ((URLClassLoader)loader).getURLs();
        if (urls != null)
        {     
            for (int i=0;i<urls.length;i++)
            {
                Resource resource = Resource.newResource(urls[i]);
                File file=resource.getFile();
                if (file!=null && file.exists())
                {
                    if (classpath.length()>0)
                        classpath.append(File.pathSeparatorChar);
                    classpath.append(file.getAbsolutePath());
                }
            }
        }
        loader = loader.getParent();
    }
    return classpath.toString();
}
 
Example 15
private void setupSwagger() {
  BeanConfig beanConfig = new BeanConfig();
  beanConfig.setTitle("Pinot Starter API");
  beanConfig.setDescription("APIs for accessing Pinot Starter information");
  beanConfig.setContact("https://github.com/apache/incubator-pinot");
  beanConfig.setVersion("1.0");
  beanConfig.setSchemes(new String[]{"http"});
  beanConfig.setBasePath(_baseUri.getPath());
  beanConfig.setResourcePackage(RESOURCE_PACKAGE);
  beanConfig.setScan(true);

  HttpHandler httpHandler =
      new CLStaticHttpHandler(PinotServiceManagerAdminApiApplication.class.getClassLoader(), "/api/");
  // map both /api and /help to swagger docs. /api because it looks nice. /help for backward compatibility
  _httpServer.getServerConfiguration().addHttpHandler(httpHandler, "/api/", "/help/");

  URL swaggerDistLocation = PinotServiceManagerAdminApiApplication.class.getClassLoader()
      .getResource("META-INF/resources/webjars/swagger-ui/2.2.2/");
  CLStaticHttpHandler swaggerDist = new CLStaticHttpHandler(new URLClassLoader(new URL[]{swaggerDistLocation}));
  _httpServer.getServerConfiguration().addHttpHandler(swaggerDist, "/swaggerui-dist/");
}
 
Example 16
public ClassLoader getResourceClassLoader()
{

    File f = new File("woof", "alfrescoResources");
    if (f.canRead() && f.isDirectory())
    {

        URL[] urls = new URL[1];

        try
        {
            URL url = f.toURI().normalize().toURL();
            urls[0] = url;
        }
        catch (MalformedURLException e)
        {
            throw new AlfrescoRuntimeException("Failed to add resources to classpath ", e);
        }

        return URLClassLoader.newInstance(urls, this.getClass().getClassLoader());
    }
    else
    {
        return this.getClass().getClassLoader();
    }
}
 
Example 17
Source Project: GriefDefender   Source File: BootstrapUtil.java    License: MIT License 6 votes vote down vote up
public static void addUrlToClassLoader(String name, File input) {
    try {
        final ClassLoader classLoader = GDBootstrap.class.getClassLoader();
        if (classLoader instanceof URLClassLoader) {
            try {
                METHOD_ADD_URL.invoke(classLoader, new URL("jar:file:" + input.getPath() + "!/"));
            } catch (Throwable t) {
                t.printStackTrace();
            }
        } else {
            throw new RuntimeException("Unknown classloader: " + classLoader.getClass());
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}
 
Example 18
Source Project: jdk8u-jdk   Source File: LeakTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
private static WeakReference<ClassLoader>
        testShadow(Class<?> originalTestClass) throws Exception {
    URLClassLoader originalLoader =
            (URLClassLoader) originalTestClass.getClassLoader();
    URL[] urls = originalLoader.getURLs();
    URLClassLoader shadowLoader =
            new ShadowClassLoader(urls, originalLoader.getParent());
    System.out.println("Shadow loader is " + shadowLoader);
    String className = originalTestClass.getName();
    Class<?> testClass = Class.forName(className, false, shadowLoader);
    if (testClass.getClassLoader() != shadowLoader) {
        throw new IllegalArgumentException("Loader didn't work: " +
                testClass.getClassLoader() + " != " + shadowLoader);
    }
    Method main = testClass.getMethod("main", String[].class);
    main.invoke(null, (Object) new String[0]);
    return new WeakReference<ClassLoader>(shadowLoader);
}
 
Example 19
Source Project: tomee   Source File: TomEEJarScanner.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void scan(final JarScanType scanType, final ServletContext context, final JarScannerCallback callback) {
    super.scan(scanType, context, callback);
    if (!embeddedSurefireScanning(scanType, context, callback) && isScanClassPath() && !URLClassLoader.class.isInstance(getSystemClassLoader())
            && !Boolean.getBoolean("tomee.classpath.scanning.disabled")) {
        // TODO: check on tomcat upgrade if it is fixed
        final String cp = System.getProperty("java.class.path");
        final Collection<URL> urls = new HashSet<>();
        for (final String jar : cp.split(File.pathSeparator)) {
            if(!jar.isEmpty()){
                try {
                    urls.add(new File(jar).toURI().toURL());
                } catch (MalformedURLException e) {
                    // no-op
                }
            }
        }
        doScan(scanType, callback, new LinkedList<>(urls));
    }
}
 
Example 20
Source Project: AVM   Source File: ReflectionBenchmarkUniqueAccessTest.java    License: MIT License 6 votes vote down vote up
private long uniqueInstanceMethodHandleInstanceFieldWriteAccessInvokeExactOnly(int spins) throws Throwable {
    ReflectionTarget[] targets = new ReflectionTarget[spins];
    MethodHandle[] fields = new MethodHandle[spins];

    for (int i = 0; i < spins; i++) {
        ClassLoader loader = new URLClassLoader(new URL[]{ classpathDirectory.toURI().toURL() });
        Class<?> clazz = loader.loadClass(targetClassName);
        targets[i] = (ReflectionTarget) MethodHandles.lookup().findConstructor(clazz, MethodType.methodType(void.class)).invoke();
        fields[i] = MethodHandles.lookup().findSetter(clazz, instanceField, Object.class);
    }

    Object object = new Object();

    long start = System.nanoTime();
    for (int i = 0; i < spins; i++) {
        fields[i].invokeExact(targets[i], object);
    }
    long end = System.nanoTime();
    return end - start;
}
 
Example 21
Source Project: netbeans   Source File: StandaloneTest.java    License: Apache License 2.0 6 votes vote down vote up
@Override
protected void setUp() throws Exception {
    URL api = CommandLine.class.getProtectionDomain().getCodeSource().getLocation();
    URL options = Options.class.getProtectionDomain().getCodeSource().getLocation();
    
    loader = new URLClassLoader(
        new URL[] { api, options },
        CommandLine.class.getClassLoader().getParent()
    );
    Thread.currentThread().setContextClassLoader(loader);
    
    classCommandLine = loader.loadClass(CommandLine.class.getName());
    classOptions = loader.loadClass(Options.class.getName());
    methodProcess = classCommandLine.getMethod("process", String[].class);
    methodUsage = classCommandLine.getMethod("usage", PrintWriter.class);
}
 
Example 22
Source Project: osp   Source File: LaunchClassChooser.java    License: GNU General Public License v3.0 6 votes vote down vote up
LaunchableClassMap(String[] names) {
  jarOrDirectoryNames = names;
  // create a URL for each jar or directory
  Collection<URL> urls = new ArrayList<URL>();
  // changed by D Brown 2007-11-06 for Linux
  // changed by F Esquembre and D Brown 2010-03-02 to allow arbitrary base path
  String basePath = LaunchClassChooser.baseDirectoryPath;
  if (basePath==null) basePath = OSPRuntime.getLaunchJarDirectory();
  for(int i = 0; i<names.length; i++) {
    String path = XML.getResolvedPath(names[i], basePath);
    if (!path.endsWith(".jar") && !path.endsWith("/")) { //$NON-NLS-1$ //$NON-NLS-2$
    	path += "/";  // directories passed to URLClassLoader must end with slash //$NON-NLS-1$
    }
    try {
      urls.add(new URL("file:"+path)); //$NON-NLS-1$
    } catch(MalformedURLException ex) {
      OSPLog.info(ex+" "+path);        //$NON-NLS-1$
    }
  }
  // create the class loader
  classLoader = URLClassLoader.newInstance(urls.toArray(new URL[0]));
}
 
Example 23
Source Project: quarkus   Source File: ArcTestContainer.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void afterEach(ExtensionContext extensionContext) throws Exception {
    ClassLoader oldTccl = getRootExtensionStore(extensionContext).get(KEY_OLD_TCCL, ClassLoader.class);
    Thread.currentThread().setContextClassLoader(oldTccl);

    URLClassLoader testClassLoader = getRootExtensionStore(extensionContext).get(KEY_TEST_CLASSLOADER,
            URLClassLoader.class);
    if (testClassLoader != null) {
        try {
            testClassLoader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    shutdown();
}
 
Example 24
Source Project: hottub   Source File: IndirectlyLoadABundle.java    License: GNU General Public License v2.0 6 votes vote down vote up
public boolean testGetAnonymousLogger() throws Throwable {
    // Test getAnonymousLogger()
    URLClassLoader loadItUpCL = new URLClassLoader(getURLs(), null);
    Class<?> loadItUpClazz = Class.forName("LoadItUp1", true, loadItUpCL);
    ClassLoader actual = loadItUpClazz.getClassLoader();
    if (actual != loadItUpCL) {
        throw new Exception("LoadItUp1 was loaded by an unexpected CL: "
                             + actual);
    }
    Object loadItUpAnon = loadItUpClazz.newInstance();
    Method testAnonMethod = loadItUpClazz.getMethod("getAnonymousLogger",
                                                    String.class);
    try {
        return (Logger)testAnonMethod.invoke(loadItUpAnon, rbName) != null;
    } catch (InvocationTargetException ex) {
        throw ex.getTargetException();
    }
}
 
Example 25
Source Project: The-5zig-Mod   Source File: PluginManagerImpl.java    License: MIT License 6 votes vote down vote up
Class<?> getClassByName(String name, URLClassLoader ignore) {
	Class<?> clazz = cachedClasses.get(name);
	if (clazz != null) {
		return clazz;
	}
	for (LoadedPlugin plugin : plugins) {
		PluginClassLoader classLoader = plugin.getClassLoader();
		if (classLoader == ignore) {
			continue;
		}
		try {
			clazz = classLoader.findClass(name, false);
		} catch (ClassNotFoundException ignored) {
		}
		if (clazz != null) {
			cachedClasses.put(name, clazz);
			return clazz;
		}
	}
	return null;
}
 
Example 26
Source Project: openjdk-8   Source File: ClassLoad.java    License: GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) throws Exception {
     boolean error = true;

     // Start a dummy server to return 404
     HttpServer server = HttpServer.create(new InetSocketAddress(0), 0);
     HttpHandler handler = new HttpHandler() {
         public void handle(HttpExchange t) throws IOException {
             InputStream is = t.getRequestBody();
             while (is.read() != -1);
             t.sendResponseHeaders (404, -1);
             t.close();
         }
     };
     server.createContext("/", handler);
     server.start();

     // Client request
     try {
         URL url = new URL("http://localhost:" + server.getAddress().getPort());
         String name = args.length >= 2 ? args[1] : "foo.bar.Baz";
         ClassLoader loader = new URLClassLoader(new URL[] { url });
         System.out.println(url);
         Class c = loader.loadClass(name);
         System.out.println("Loaded class \"" + c.getName() + "\".");
     } catch (ClassNotFoundException ex) {
         System.out.println(ex);
         error = false;
     } finally {
         server.stop(0);
     }
     if (error)
         throw new RuntimeException("No ClassNotFoundException generated");
}
 
Example 27
/**
 * Read all the transformation sets.
 *
 * @param sets Parent element "sets" for the transformation set.
 * @throws Exception If transformation set file does not exist or not well
 *                   formatted.
 */
private void readSets(Element sets) throws Exception {
  File xsdSchema = Paths.get(_configuration_path, SET_XSD).toFile();

  NodeList transformationSets = sets.getElementsByTagName(SET_ELEMENT);
  for(int i = 0; i < transformationSets.getLength(); ++i) {
    Element e = (Element) transformationSets.item(i);
    String setName = e.getAttribute(NAME_ATTR);
    File setFile = Paths.get(_configuration_path, setName + XML_EXT).toFile();
    if(!setFile.exists()) {
      throw new Exception("Transformation set " + setName
          + " cannot be found!");
    }

    Document setDocument = parseAndValidate(setFile, xsdSchema);
    Element root = setDocument.getDocumentElement();
    boolean isExternal = root.hasAttribute(JAR_ATTR);

    // Try to locate the external jar
    if(isExternal) {
      String externalJar = root.getAttribute(JAR_ATTR);
      URLClassLoader loader = loadExternalJar(externalJar);
      readTransformations(setName, root, loader);
    } else {
      readTransformations(setName, root, null);
    }
  }
}
 
Example 28
@Test
public void marshallClassCastExceptionTest() throws Exception {
    JAXBContext jaxbContext;
    Marshaller marshaller;
    URLClassLoader jaxbContextClassLoader;
    // Generate java classes by xjc
    runXjc(XSD_FILENAME);
    // Compile xjc generated java files
    compileXjcGeneratedClasses();

    // Create JAXB context based on xjc generated package.
    // Need to create URL class loader ot make compiled classes discoverable
    // by JAXB context
    jaxbContextClassLoader = URLClassLoader.newInstance(new URL[] {testWorkDirUrl});
    jaxbContext = JAXBContext.newInstance( TEST_PACKAGE, jaxbContextClassLoader);

    // Create instance of Xjc generated data type.
    // Java classes were compiled during the test execution hence reflection
    // is needed here
    Class classLongListClass = jaxbContextClassLoader.loadClass(TEST_CLASS);
    Object objectLongListClass = classLongListClass.newInstance();
    // Get 'getIn' method object
    Method getInMethod = classLongListClass.getMethod( GET_LIST_METHOD, (Class [])null );
    // Invoke 'getIn' method
    List<Long> inList = (List<Long>)getInMethod.invoke(objectLongListClass);
    // Add values into the jaxb object list
    inList.add(Long.valueOf(0));
    inList.add(Long.valueOf(43));
    inList.add(Long.valueOf(1000000123));

    // Marshall constructed complex type variable to standard output.
    // In case of failure the ClassCastException will be thrown
    marshaller = jaxbContext.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
    marshaller.marshal(objectLongListClass, System.out);
}
 
Example 29
@Test
public void mustCreateAndRunIfObjectStatements() throws Exception {
    // Augment signature
    methodNode.desc = Type.getMethodDescriptor(
            Type.getType(String.class),
            new Type[] { Type.getType(Object.class), Type.getType(Object.class) });
    
    // Initialize variable table
    VariableTable varTable = new VariableTable(classNode, methodNode);
    Variable intVar1 = varTable.getArgument(1);
    Variable intVar2 = varTable.getArgument(2);
    
    // Update method logic
    /**
     * if (arg1 == arg2) {
     *     return "match";
     * }
     * return "nomatch";
     */
    methodNode.instructions
            = merge(
                    ifObjectsEqual(
                            loadVar(intVar1),
                            loadVar(intVar2),
                            returnValue(Type.getType(String.class), loadStringConst("match"))),
                    returnValue(Type.getType(String.class), loadStringConst("nomatch"))
            );
    
    Object testObj1 = "test1";
    Object testObj2 = "test2";
    // Write to JAR file + load up in classloader -- then execute tests
    try (URLClassLoader cl = createJarAndLoad(classNode)) {
        Object obj = cl.loadClass(STUB_CLASSNAME).newInstance();
        
        assertEquals("match", MethodUtils.invokeMethod(obj, STUB_METHOD_NAME, testObj1, testObj1));
        assertEquals("nomatch", MethodUtils.invokeMethod(obj, STUB_METHOD_NAME, testObj1, testObj2));
        assertEquals("match", MethodUtils.invokeMethod(obj, STUB_METHOD_NAME, testObj2, testObj2));
    }
}
 
Example 30
Source Project: dependency-mediator   Source File: DependencyMediator.java    License: Apache License 2.0 5 votes vote down vote up
private static Collection<URLClassLoader> getClassLoaders(ClassLoader baseClassLoader) {
    Collection<URLClassLoader> loaders = new ArrayList<URLClassLoader>();
    ClassLoader loader = baseClassLoader;
    while (loader != null) {
        //Ignore 
        if ("sun.misc.Launcher$ExtClassLoader".equals(loader.getClass().getName())) {
            break;
        }
        if (loader instanceof URLClassLoader) {
            loaders.add((URLClassLoader) loader);
        }
        loader = loader.getParent();
    }
    return loaders;
}