Example usage for java.lang ClassNotFoundException ClassNotFoundException

Introduction

In this page you can find the example usage for java.lang ClassNotFoundException ClassNotFoundException.

Prototype

public ClassNotFoundException(String s) 

Source Link

Document

Constructs a ClassNotFoundException with the specified detail message.

Usage

From source file:org.bimserver.plugins.classloaders.EclipsePluginClassloader.java

@Override
public Class<?> findClass(String name) throws ClassNotFoundException {
    String filename = name.replace(".", File.separator) + ".class";
    if (loadedClasses.containsKey(filename)) {
        return loadedClasses.get(filename);
    }//  w  ww.j  a  v a2 s.  c  om
    Path classFile = classFolder.resolve(filename);
    if (Files.exists(classFile)) {
        try {
            byte[] bytes = IOUtils.toByteArray(Files.newInputStream(classFile));
            Class<?> definedClass = defineClass(name, bytes, 0, bytes.length);
            if (definedClass != null) {
                loadedClasses.put(filename, definedClass);

                /*
                 * This is a fix to actually load the package-info.class file with
                 * the annotations about for example namespaces required for JAXB to
                 * work. Found this code here:
                 * https://issues.jboss.org/browse/JBPM-1404
                 */
                if (definedClass != null) {
                    final int packageIndex = name.lastIndexOf('.');
                    if (packageIndex != -1) {
                        final String packageName = name.substring(0, packageIndex);
                        final Package classPackage = getPackage(packageName);
                        if (classPackage == null) {
                            definePackage(packageName, null, null, null, null, null, null, null);
                        }
                    }
                }

                return definedClass;
            }
        } catch (IOException e) {
            LOGGER.error("", e);
        }
    }
    throw new ClassNotFoundException(name);
}

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From source file:oqube.bytes.loading.InstrumentingClassLoader.java

@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
    String cln = name.replace('.', '/');
    // lookup in loaded classes
    Class<?> cls = generated.get(cln);
    if (cls != null)
        return cls;
    else//w w  w.j a  v  a 2 s.co  m
        throw new ClassNotFoundException("Cannot find class " + name);
}

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From source file:com.thoughtworks.go.util.NestedJarClassLoader.java

@Override
protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
    if (existsInTfsJar(name)) {
        throw new ClassNotFoundException(name);
    }/*from   w w w  .  j  a  va  2 s .c  o m*/
    return invokeParentClassloader(name, resolve);
}

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From source file:org.mule.providers.soap.axis.wsdl.wsrf.util.AdviceAdderHelper.java

/**
 * list Classes inside a given package.// w  w  w . ja  v a 2  s. c  om
 * 
 * @param pckgname String name of a Package, EG "java.lang"
 * @return Class[] classes inside the root of the given package
 * @throws ClassNotFoundException if the Package is invalid
 */
private static Class[] getClasses(String pckgname) throws ClassNotFoundException {

    ArrayList classes = new ArrayList();
    // Get a File object for the package
    File directory = null;
    try {
        URL str = Thread.currentThread().getContextClassLoader().getResource(pckgname.replace('.', '/'));
        System.out.println("instance advice..." + new File(str.getFile()).getName());
        directory = new File(str.getFile());

    } catch (NullPointerException x) {
        throw new ClassNotFoundException(pckgname + " does not appear to be a valid package");
    }
    if (directory.exists()) {
        // Get the list of the files contained in the package
        String[] files = directory.list();
        for (int i = 0; i < files.length; i++) {
            // we are only interested in *Advice.class files
            if (files[i].endsWith("Advice.class")) {
                // removes the .class extension
                classes.add(Class.forName(
                        pckgname + '.' + files[i].substring(0, files[i].length() - SUFFIX_CLASS_LENGTH)));
            }
        }
    } else {
        throw new ClassNotFoundException(pckgname + " does not appear to be a valid package");
    }
    Class[] classesA = new Class[classes.size()];
    classes.toArray(classesA);
    return classesA;
}

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From source file:org.nuxeo.runtime.osgi.OSGiRuntimeActivator.java

public Class<?> loadClass(String bundleName, String className) throws ReflectiveOperationException {
    Bundle bundle = getBundle(bundleName);
    if (bundle == null) {
        throw new ClassNotFoundException(
                "No bundle found with name: " + bundleName + ". Unable to load class " + className);
    }/*from  w  ww.j a  v  a 2  s  .c  o  m*/
    return bundle.loadClass(className);
}

---

From source file:org.grouplens.grapht.util.ClassProxy.java

/**
 * Resolve a class proxy to a class.// w w  w. ja v a 2  s.  c  om
 * @return The class represented by this proxy.
 * @throws ClassNotFoundException if the class represented by this proxy cannot be found.
 */
public Class<?> resolve() throws ClassNotFoundException {
    WeakReference<Class<?>> ref = theClass;
    Class<?> cls = ref == null ? null : ref.get();
    if (cls == null) {
        if (className.equals("void")) {
            // special case
            cls = Void.TYPE;
        } else {
            cls = ClassUtils.getClass(classLoader, className);
        }
        long check = checksumClass(cls);
        if (!isSerializationPermissive() && checksum != check) {
            throw new ClassNotFoundException("checksum mismatch for " + cls.getName());
        } else {
            if (checksum != check) {
                logger.warn("checksum mismatch for {}", cls);
            }
            theClass = new WeakReference<Class<?>>(cls);
        }
    }
    return cls;
}

---

From source file:org.ebayopensource.turmeric.eclipse.utils.classloader.SOAPluginClassLoader.java

/**
 * {@inheritDoc}/*from  w ww  . j  a  va 2  s  .  c  o  m*/
 */
@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {

    Class<?> loadedClass = findLoadedClass(name);
    if (loadedClass != null) {
        return loadedClass;
    }

    StringBuilder sb = new StringBuilder(name.length() + 6);
    sb.append(name.replace('.', '/')).append(".class");

    InputStream is = getResourceAsStream(sb.toString());

    if (is == null)
        throw new ClassNotFoundException("Class not found " + sb);
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        int len;
        while ((len = is.read(buf)) >= 0)
            baos.write(buf, 0, len);

        buf = baos.toByteArray();

        // define package if not defined yet
        int i = name.lastIndexOf('.');
        if (i != -1) {
            String pkgname = name.substring(0, i);
            Package pkg = getPackage(pkgname);
            if (pkg == null)
                definePackage(pkgname, null, null, null, null, null, null, null);
        }
        baos.close();
        is.close();
        return defineClass(name, buf, 0, buf.length);
    } catch (IOException e) {
        throw new ClassNotFoundException(name, e);
    }
}

---

From source file:com.nttec.everychan.ui.theme.CustomThemeHelper.java

private View instantiate(String name, Context context, AttributeSet attrs) {
    try {/*from  w  ww  .j  a va  2  s.c  om*/
        Constructor<? extends View> constructor = CONSTRUCTOR_MAP.get(name);
        if (constructor == null) {
            Class<? extends View> clazz = null;
            if (name.indexOf('.') != -1) {
                clazz = context.getClassLoader().loadClass(name).asSubclass(View.class);
            } else {
                for (String prefix : CLASS_PREFIX_LIST) {
                    try {
                        clazz = context.getClassLoader().loadClass(prefix + name).asSubclass(View.class);
                        break;
                    } catch (ClassNotFoundException e) {
                    }
                }
                if (clazz == null)
                    throw new ClassNotFoundException("couldn't find class: " + name);
            }
            constructor = clazz.getConstructor(CONSTRUCTOR_SIGNATURE);
            CONSTRUCTOR_MAP.put(name, constructor);
        }

        Object[] args = constructorArgs;
        args[0] = context;
        args[1] = attrs;

        constructor.setAccessible(true);
        View view = constructor.newInstance(args);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN && view instanceof ViewStub)
            CompatibilityImpl.setLayoutInflater((ViewStub) view, inflater.cloneInContext(context));
        return view;
    } catch (Exception e) {
        Logger.e(TAG, "couldn't instantiate class " + name, e);
        return null;
    }
}

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From source file:org.cryptonode.jncryptor.JNCryptorFactory.java

/**
 * Retrieves an {@link JNCryptor} implementing the specified version number.
 * /* w ww.  j a v  a2s.  c  o m*/
 * @param version
 *          the version number. A positive number smaller than 256 (must be
 *          expressible in eight bits).
 * @return the {@link JNCryptor}
 * @throws ClassNotFoundException
 *           if no implementation exists for that version
 */
public static JNCryptor getCryptor(int version) throws ClassNotFoundException {
    JNCryptor cryptor = supportedVersions.get(version);

    if (cryptor == null) {
        throw new ClassNotFoundException(String.format("No implementation found for version %d.", version));
    }

    return cryptor;
}

---

From source file:org.apache.openejb.core.TempClassLoader.java

protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
    if (name == null)
        throw new NullPointerException("name cannot be null");

    // see if we've already loaded it
    Class c = findLoadedClass(name);
    if (c != null) {
        return c;
    }//from  w  w  w.j ava 2s  .  c  o m

    // bug #283. defer to system if the name is a protected name.
    // "sun." is required for JDK 1.4, which has an access check for
    // sun.reflect.GeneratedSerializationConstructorAccessor1
    /*
     * FIX for openejb-tomcat JSF support . Added the following to the if statement below: !name.startsWith("javax.faces")
     *We want to use this TempClassLoader to also load the classes in the javax.faces package. 
     *If not, then our AnnotationDeployer will not be able to load the javax.faces.FacesServlet class if this class is in a jar which 
     *is in the WEB-INF/lib directory of a web app. 
     * see AnnotationDeployer$ProcessAnnotatedBeans.deploy(WebModule webModule) 
     * Here is what happened  before this fix was applied:
     * 1. The AnnotationDeployer tries to load the javax.faces.FacesServlet using this classloader (TempClassLoader)
     * 2. Since this class loader uses Class.forName to load classes starting with java, javax or sun, it cannot load javax.faces.FacesServlet
     * 3. Result is , AnnotationDeployer throws a ClassNotFoundException
     */
    if (skip(name)) {
        return Class.forName(name, resolve, getClass().getClassLoader());
    }
    //        ( && !name.startsWith("javax.faces.") )||
    String resourceName = name.replace('.', '/') + ".class";
    InputStream in = getResourceAsStream(resourceName);
    if (in == null) {
        throw new ClassNotFoundException(name);
    }

    // 80% of class files are smaller then 6k
    ByteArrayOutputStream bout = new ByteArrayOutputStream(8 * 1024);

    // copy the input stream into a byte array
    byte[] bytes;
    try {
        byte[] buf = new byte[4 * 1024];
        for (int count; (count = in.read(buf)) >= 0;) {
            bout.write(buf, 0, count);
        }
        bytes = bout.toByteArray();
    } catch (IOException e) {
        throw new ClassNotFoundException(name, e);
    }

    // Annotation classes must be loaded by the normal classloader
    // So must Enum classes to prevent problems with the sun jdk.
    if (skip.contains(Skip.ANNOTATIONS) && isAnnotationClass(bytes)) {
        return Class.forName(name, resolve, getClass().getClassLoader());
    }

    if (skip.contains(Skip.ENUMS) && isEnum(bytes)) {
        return Class.forName(name, resolve, getClass().getClassLoader());
    }

    // define the package
    int packageEndIndex = name.lastIndexOf('.');
    if (packageEndIndex != -1) {
        String packageName = name.substring(0, packageEndIndex);
        if (getPackage(packageName) == null) {
            definePackage(packageName, null, null, null, null, null, null, null);
        }
    }

    // define the class
    try {
        return defineClass(name, bytes, 0, bytes.length);
    } catch (SecurityException e) {
        // possible prohibited package: defer to the parent
        return super.loadClass(name, resolve);
    } catch (LinkageError le) {
        // fallback
        return super.loadClass(name, resolve);
    }
}

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