Example usage for java.lang ClassNotFoundException getCause

Introduction

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

Prototype

public synchronized Throwable getCause() 

Source Link

Document

Returns the cause of this throwable or null if the cause is nonexistent or unknown.

Usage

From source file:org.hyperic.hq.product.jmx.MxUtil.java

static String getUrlFromPid(String ptql) throws IOException {
    Sigar sigar = new Sigar();
    String address;/*from w  w w .  ja v  a2s  .  com*/
    long pid;

    try {
        pid = new ProcessFinder(sigar).findSingleProcess(ptql);

        Class caddrLinkClass = Class.forName("sun.management.ConnectorAddressLink");

        Method importFrom = caddrLinkClass.getMethod("importFrom", new Class[] { Integer.TYPE });

        address = (String) importFrom.invoke(caddrLinkClass, new Object[] { new Integer((int) pid) });
    } catch (ClassNotFoundException e) {
        String jvm = System.getProperty("java.vm.name") + " " + System.getProperty("java.vm.version");
        throw new IOException(ptql + " " + e.getMessage() + " not supported by " + jvm);
    } catch (InvocationTargetException e) {
        throw new IOException(ptql + " " + e.getCause());
    } catch (Exception e) {
        throw new IOException(ptql + " " + e);
    } finally {
        sigar.close();
    }

    if (address == null) {
        throw new IOException("Unable to determine " + PROP_JMX_URL + " using vmid=" + pid
                + ".  Server must be started with: " + "-Dcom.sun.management.jmxremote");
    }
    log.debug(PTQL_PREFIX + ptql + " resolved to vmid=" + pid + ", " + PROP_JMX_URL + "=" + address);

    return address;
}

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From source file:com.baidu.terminator.register.scanner.AnnotationScanner.java

@SuppressWarnings("unchecked")
public List<Class<? extends T>> scanAnnotatedClass() {
    List<Class<? extends T>> classList = new ArrayList<Class<? extends T>>();

    ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(
            false);/*from ww w.  j a v  a 2 s  .co m*/
    scanner.addIncludeFilter(new AnnotationTypeFilter(annotationType));
    Set<BeanDefinition> components = scanner.findCandidateComponents(scannerPackage);

    for (BeanDefinition bd : components) {
        String className = bd.getBeanClassName();
        try {
            Class<? extends T> clazz = (Class<? extends T>) Class.forName(className);
            classList.add(clazz);
        } catch (ClassNotFoundException e) {
            LOGGER.warn("can not find class" + className, e.getCause());
        }
    }
    return classList;
}

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From source file:org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.java

/**
 * Invoke 'getJar' on a JarFinder implementation. Useful for some job
 * configuration contexts (HBASE-8140) and also for testing on MRv2. First
 * check if we have HADOOP-9426. Lacking that, fall back to the backport.
 * @param my_class the class to find./*  w  ww  .  j a  v a  2s . c o  m*/
 * @return a jar file that contains the class, or null.
 */
private static String getJar(Class<?> my_class) {
    String ret = null;
    String hadoopJarFinder = "org.apache.hadoop.util.JarFinder";
    Class<?> jarFinder = null;
    try {
        LOG.debug("Looking for " + hadoopJarFinder + ".");
        jarFinder = Class.forName(hadoopJarFinder);
        LOG.debug(hadoopJarFinder + " found.");
        Method getJar = jarFinder.getMethod("getJar", Class.class);
        ret = (String) getJar.invoke(null, my_class);
    } catch (ClassNotFoundException e) {
        LOG.debug("Using backported JarFinder.");
        ret = JarFinder.getJar(my_class);
    } catch (InvocationTargetException e) {
        // function was properly called, but threw it's own exception. Unwrap it
        // and pass it on.
        throw new RuntimeException(e.getCause());
    } catch (Exception e) {
        // toss all other exceptions, related to reflection failure
        throw new RuntimeException("getJar invocation failed.", e);
    }

    return ret;
}

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From source file:jenkins.model.RunIdMigrator.java

/**
 * Tries to move/rename a file from one path to another.
 * Uses {@link java.nio.file.Files#move} when available.
 * Does not use {@link java.nio.file.StandardCopyOption#REPLACE_EXISTING} or any other options.
 * TODO candidate for moving to {@link Util}
 *//*from   ww  w  .j a  v  a2s.  c om*/
static void move(File src, File dest) throws IOException {
    Class<?> pathC;
    try {
        pathC = Class.forName("java.nio.file.Path");
    } catch (ClassNotFoundException x) {
        // Java 6, do our best
        if (dest.exists()) {
            throw new IOException(dest + " already exists");
        }
        if (src.renameTo(dest)) {
            return;
        }
        throw new IOException("could not move " + src + " to " + dest);
    }
    try {
        Method toPath = File.class.getMethod("toPath");
        Class<?> copyOptionAC = Class.forName("[Ljava.nio.file.CopyOption;");
        Class.forName("java.nio.file.Files").getMethod("move", pathC, pathC, copyOptionAC).invoke(null,
                toPath.invoke(src), toPath.invoke(dest), Array.newInstance(copyOptionAC.getComponentType(), 0));
    } catch (InvocationTargetException x) {
        Throwable cause = x.getCause();
        if (cause instanceof IOException) {
            throw (IOException) cause;
        } else {
            throw new IOException(cause);
        }
    } catch (Exception x) {
        throw new IOException(x);
    }
}

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From source file:org.cloudgraph.hbase.mapreduce.GraphMapReduceSetup.java

/**
 * Invoke 'getJar' on a JarFinder implementation. Useful for some job
 * configuration contexts (HBASE-8140) and also for testing on MRv2. First
 * check if we have HADOOP-9426. Lacking that, fall back to the backport.
 * /*from   w w w.ja  v a 2s .  co m*/
 * @param my_class
 *          the class to find.
 * @return a jar file that contains the class, or null.
 */
private static String getJar(Class<?> my_class) {
    String ret = null;
    String hadoopJarFinder = "org.apache.hadoop.util.JarFinder";
    Class<?> jarFinder = null;
    try {
        LOG.debug("Looking for " + hadoopJarFinder + ".");
        jarFinder = Class.forName(hadoopJarFinder);
        LOG.debug(hadoopJarFinder + " found.");
        Method getJar = jarFinder.getMethod("getJar", Class.class);
        ret = (String) getJar.invoke(null, my_class);
    } catch (ClassNotFoundException e) {
        LOG.debug("Using backported JarFinder.");
        ret = JarFinder.getJar(my_class);
    } catch (InvocationTargetException e) {
        // function was properly called, but threw it's own exception.
        // Unwrap it
        // and pass it on.
        throw new RuntimeException(e.getCause());
    } catch (Exception e) {
        // toss all other exceptions, related to reflection failure
        throw new RuntimeException("getJar invocation failed.", e);
    }

    return ret;
}

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From source file:org.mule.module.apikit.validation.io.JsonSchemaResource.java

@Override
public InputStream getInputStream() throws IOException {
    try {//w w  w  .  ja  v a 2  s  . c  o  m
        Class<?> clazz = this.classLoader.loadClass(className);
        return new ByteArrayInputStream(schemaCache.get(clazz));
    } catch (ClassNotFoundException e) {
        throw new IOException(getDescription() + " cannot be found", e);
    } catch (ExecutionException e) {
        throw new IOException(getDescription() + " cannot be found", e.getCause());
    }
}

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From source file:org.mule.module.apikit.validation.io.XmlSchemaResource.java

@Override
public InputStream getInputStream() throws IOException {
    try {//www .  java 2 s .c  om
        Class<?> clazz = this.classLoader.loadClass(className);

        return new ByteArrayInputStream(schemaCache.get(clazz));
    } catch (ClassNotFoundException e) {
        throw new IOException(getDescription() + " cannot be found", e);
    } catch (ExecutionException e) {
        throw new IOException(getDescription() + " execution exception", e.getCause());
    }
}

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From source file:com.baidu.terminator.manager.service.LinkControlServiceImpl.java

@Override
public Class<?> getPluginClass(Link link, WorkMode mode) {
    Class<?> clazz = null;//from  www  . j a v a 2 s  .c  o m

    String className = null;
    if (WorkMode.RECORD.equals(mode) || WorkMode.REPLAY.equals(mode)) {
        className = link.getSignClass();
    } else if (WorkMode.STUB.equals(mode)) {
        className = link.getExtractClass();
    }

    if (StringUtils.isBlank(className)) {
        if (WorkMode.RECORD.equals(mode) || WorkMode.REPLAY.equals(mode)) {
            clazz = protocolRegister.getDefaultSignerMap(link.getProtocolType());
        } else if (WorkMode.STUB.equals(mode)) {
            clazz = protocolRegister.getDefaultExtractorMap(link.getProtocolType());
        }
    } else {
        try {
            clazz = Class.forName(className);
        } catch (ClassNotFoundException e) {
            if (WorkMode.RECORD.equals(mode) || WorkMode.REPLAY.equals(mode)) {
                throw new SignerInitializationException("can not found sign class!", e.getCause());
            } else if (WorkMode.STUB.equals(mode)) {
                throw new SignerInitializationException("can not found extract class", e.getCause());
            }
        }
    }

    return clazz;
}

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From source file:com.aliyun.openservices.odps.console.utils.CommandParserUtils.java

private static AbstractCommand reflectCommandObject(String commandName, Class<?>[] argTypes, Object... args)
        throws ODPSConsoleException {

    Class<?> commandClass = null;
    try {//from www  . ja va2  s.c  om

        if (classLoader == null) {
            loadPlugins();
        }

        commandClass = Class.forName(commandName, false, classLoader);
        Method parseMethod = commandClass.getDeclaredMethod("parse", argTypes);

        Object commandObject = parseMethod.invoke(null, args);

        if (commandObject != null) {
            return (AbstractCommand) commandObject;
        } else {
            return null;
        }
    } catch (ClassNotFoundException e) {
        // Console??AssertionError
        throw new AssertionError("Cannot find the command:" + commandName);
    } catch (SecurityException e) {
        throw new AssertionError("Cannot find the parse method on the command: " + commandName);
    } catch (NoSuchMethodException e) {
        //FOR there's two kind of command,not throw exception
        return null;
    } catch (IllegalArgumentException e) {
        throw new AssertionError("Failed to invoke the parse method on the command:" + commandName);
    } catch (IllegalAccessException e) {
        throw new AssertionError("Failed to invoke the parse method on the command:" + commandName);
    } catch (InvocationTargetException e) {
        if (e.getCause() instanceof ODPSConsoleException) {
            String msg = e.getCause().getMessage();
            if (!StringUtils.isNullOrEmpty(msg) && msg.contains(ODPSConsoleConstants.BAD_COMMAND)
                    && commandClass != null) {
                String output = getCommandUsageString(commandClass);
                if (output != null) {
                    throw new ODPSConsoleException(e.getCause().getMessage() + "\n" + output);
                }
            }
            throw (ODPSConsoleException) e.getCause();
        } else {
            throw new ODPSConsoleException(e.getCause());
        }
    }
}

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From source file:ClassSearchUtils.java

/**
 * @param name Name of to parent directories in java class notation (dot
 * separator)/*from  w w w  .j a  va  2s .  c  om*/
 * @param dir Directory to be searched for classes.
 */
private void lookInDirectory(String name, File dir) {
    log.fine("Looking in directory [" + dir.getName() + "].");
    File[] files = dir.listFiles();
    File file;
    String fileName;
    final int size = files.length;
    for (int i = 0; i < size; i++) {
        file = files[i];
        fileName = file.getName();
        if (file.isFile() && fileName.toLowerCase().endsWith(this.extension)) {
            try {
                if (this.extension.equalsIgnoreCase(".class")) {
                    fileName = fileName.substring(0, fileName.length() - 6);
                    // filter ignored resources
                    if (!(name + fileName).startsWith(this.prefix)) {
                        continue;
                    }

                    log.fine("Found class: [" + name + fileName + "].");
                    this.list.add(Class.forName(name + fileName));
                } else {
                    this.list.add(
                            this.classloader.getResource(name.replace('.', File.separatorChar) + fileName));
                }
            } catch (ClassNotFoundException e) {
                // ignore
            } catch (NoClassDefFoundError e) {
                //ignore too
            } catch (ExceptionInInitializerError e) {
                if (e.getCause() instanceof HeadlessException) {
                    // running in headless env ... ignore 
                } else {
                    throw e;
                }
            }
        }
        // search recursively.
        // I don't like that but we will see how it will work.
        if (file.isDirectory()) {
            lookInDirectory(name + fileName + ".", file);
        }
    }

}

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