Example usage for java.lang Thread.UncaughtExceptionHandler Thread.UncaughtExceptionHandler

Introduction

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

Prototype

Thread.UncaughtExceptionHandler

Source Link

Usage

From source file:Main.java

public static void main(String[] args) {

    Thread t = new Thread(new MyThread());
    t.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {

        public void uncaughtException(Thread t, Throwable e) {
            System.out.println(t + " throws exception: " + e);
        }/*from w w  w . j  a v  a  2  s . co  m*/
    });
    t.start();
}

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From source file:MainClass.java

public static void main(String[] args) {
    Thread thread = new Thread(new MyThread());
    thread.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            System.out.println(t + " threw exception: " + e);
        }//from w w  w.j  ava2  s. c  om
    });
    thread.start();
}

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From source file:Main.java

public static void main(String[] args) {

    Thread t = new Thread(new MyThread());

    t.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            System.out.println(t + " throws exception: " + e);
        }//from   w  w  w.ja v a  2 s.c  om
    });
    t.start();
}

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From source file:Uncaught.java

public static void main(String[] args) {
    Thread thread = new Thread(new Uncaught());
    thread.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            e.printStackTrace();//  w w w .j  av a2  s.  c  o  m
        }
    });
    thread.start();
}

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From source file:com.joshlong.lazyblogger.Main.java

public static void main(String[] args) {

    try {//from ww  w .  ja  v a2  s  . com
        Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
            public void uncaughtException(Thread thread, Throwable e) {
                LOGGER.info(ExceptionUtils.getFullStackTrace(e));
            }
        });
        new ClassPathXmlApplicationContext("integrations-context.xml").start();

        LOGGER.info("Started context: ");
    } catch (Throwable e) {
        LOGGER.info(ExceptionUtils.getFullStackTrace(e));
    }

}

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From source file:sample.SampleApp.java

public static void main(String[] args) throws InterruptedException {
    final Log logger = LogFactory.getLog(SampleApp.class);

    //create AWSCloudTrailProcessingExecutor and start it
    final AWSCloudTrailProcessingExecutor executor = new AWSCloudTrailProcessingExecutor.Builder(
            new SampleEventsProcessor(), "/sample/awscloudtrailprocessinglibrary.properties")
                    .withSourceFilter(new SampleSourceFilter()).withEventFilter(new SampleEventFilter())
                    .withProgressReporter(new SampleProgressReporter())
                    .withExceptionHandler(new SampleExceptionHandler()).build();
    executor.start();/*from   ww w.ja  v a2  s . c  o  m*/

    // add shut down hook to gracefully stop executor (optional)
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            logger.info("Shut Down Hook is called.");
            executor.stop();
        }
    });

    // register a Default Uncaught Exception Handler (optional)
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread t, Throwable e) {
            logger.error("Handled by global Exception handler. " + e.getMessage() + " " + t.getName());

            //Two options here:
            //First, we can call System.exit(1); in such case shut down hook will be called.
            //Second, we can optionally restart another executor and start.
            final AWSCloudTrailProcessingExecutor executor = new AWSCloudTrailProcessingExecutor.Builder(
                    new SampleEventsProcessor(), "/sample/awscloudtrailprocessinglibrary.properties")
                            .withSourceFilter(new SampleSourceFilter()).withEventFilter(new SampleEventFilter())
                            .withProgressReporter(new SampleProgressReporter())
                            .withExceptionHandler(new SampleExceptionHandler()).build();
            executor.start();
        }
    });

    //can optionally limit running time, or remove both lines so it is running forever. (optional)
    Thread.sleep(24 * 60 * 60 * 1000);
    executor.stop();
}

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From source file:com.arpnetworking.tsdaggregator.TsdAggregator.java

/**
 * Entry point for Time Series Data (TSD) Aggregator.
 *
 * @param args the command line arguments
 *//*from w ww.j a  v a  2s .c  om*/
public static void main(final String[] args) {
    LOGGER.info("Launching tsd-aggregator");

    // Global initialization
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(final Thread thread, final Throwable throwable) {
            LOGGER.error("Unhandled exception!", throwable);
        }
    });

    Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
        @Override
        public void run() {
            final LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
            context.stop();
        }
    }));

    System.setProperty("org.vertx.logger-delegate-factory-class-name",
            "org.vertx.java.core.logging.impl.SLF4JLogDelegateFactory");

    // Run the tsd aggregator
    if (args.length != 1) {
        throw new RuntimeException("No configuration file specified");
    }
    LOGGER.debug(String.format("Loading configuration from file; file=%s", args[0]));

    final File configurationFile = new File(args[0]);
    final Configurator<TsdAggregator, TsdAggregatorConfiguration> configurator = new Configurator<>(
            TsdAggregator.class, TsdAggregatorConfiguration.class);
    final ObjectMapper objectMapper = TsdAggregatorConfiguration.createObjectMapper();
    final DynamicConfiguration configuration = new DynamicConfiguration.Builder().setObjectMapper(objectMapper)
            .addSourceBuilder(
                    new JsonNodeFileSource.Builder().setObjectMapper(objectMapper).setFile(configurationFile))
            .addTrigger(new FileTrigger.Builder().setFile(configurationFile).build()).addListener(configurator)
            .build();

    configuration.launch();

    final AtomicBoolean isRunning = new AtomicBoolean(true);
    Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
        @Override
        public void run() {
            LOGGER.info("Stopping tsd-aggregator");
            configuration.shutdown();
            configurator.shutdown();
            isRunning.set(false);
        }
    }));

    while (isRunning.get()) {
        try {
            Thread.sleep(30000);
        } catch (final InterruptedException e) {
            break;
        }
    }

    LOGGER.info("Exiting tsd-aggregator");
}

---

From source file:com.amazon.kinesis.streaming.agent.Agent.java

public static void main(String[] args) throws Exception {
    AgentOptions opts = AgentOptions.parse(args);
    String configFile = opts.getConfigFile();
    AgentConfiguration config = tryReadConfigurationFile(Paths.get(opts.getConfigFile()));
    Path logFile = opts.getLogFile() != null ? Paths.get(opts.getLogFile())
            : (config != null ? config.logFile() : null);
    String logLevel = opts.getLogLevel() != null ? opts.getLogLevel()
            : (config != null ? config.logLevel() : null);
    int logMaxBackupFileIndex = (config != null ? config.logMaxBackupIndex() : -1);
    long logMaxFileSize = (config != null ? config.logMaxFileSize() : -1L);
    Logging.initialize(logFile, logLevel, logMaxBackupFileIndex, logMaxFileSize);
    final Logger logger = Logging.getLogger(Agent.class);

    // Install an unhandled exception hook
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override/* w w w. j a v  a2 s. c  o m*/
        public void uncaughtException(Thread t, Throwable e) {
            if (e instanceof OutOfMemoryError) {
                // This prevents the JVM from hanging in case of an OOME
                dontShutdownOnExit = true;
            }
            String msg = "FATAL: Thread " + t.getName() + " threw an unrecoverable error. Aborting application";
            try {
                try { // We don't know if logging is still working
                    logger.error(msg, e);
                } finally {
                    System.err.println(msg);
                    e.printStackTrace();
                }
            } finally {
                System.exit(1);
            }
        }
    });

    try {
        logger.info("Reading configuration from file: {}", configFile);
        if (config == null) {
            config = readConfigurationFile(Paths.get(opts.getConfigFile()));
        }
        // Initialize and start the agent
        AgentContext agentContext = new AgentContext(config);
        if (agentContext.flows().isEmpty()) {
            throw new ConfigurationException("There are no flows configured in configuration file.");
        }
        final Agent agent = new Agent(agentContext);

        // Make sure everything terminates cleanly when process is killed
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                if (!dontShutdownOnExit && agent.isRunning()) {
                    agent.stopAsync();
                    agent.awaitTerminated();
                }
            }
        });

        agent.startAsync();
        agent.awaitRunning();
        agent.awaitTerminated();
    } catch (Exception e) {
        logger.error("Unhandled error.", e);
        System.err.println("Unhandled error.");
        e.printStackTrace();
        System.exit(1);
    }
}

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From source file:org.apache.rya.export.client.MergeDriverClient.java

public static void main(final String[] args)
        throws ParseException, MergeConfigurationException, UnknownHostException, MergerException,
        java.text.ParseException, SailException, AccumuloException, AccumuloSecurityException,
        InferenceEngineException, RepositoryException, MalformedQueryException, UpdateExecutionException {

    final String log4jConfiguration = System.getProperties().getProperty("log4j.configuration");
    if (StringUtils.isNotBlank(log4jConfiguration)) {
        final String parsedConfiguration = StringUtils.removeStart(log4jConfiguration, "file:");
        final File configFile = new File(parsedConfiguration);
        if (configFile.exists()) {
            DOMConfigurator.configure(parsedConfiguration);
        } else {//from  ww  w .  j a v a 2s. c om
            BasicConfigurator.configure();
        }
    }

    final MergeConfigurationCLI config = new MergeConfigurationCLI(args);
    try {
        configuration = config.createConfiguration();
    } catch (final MergeConfigurationException e) {
        LOG.error("Configuration failed.", e);
    }

    final boolean useTimeSync = configuration.getUseNtpServer();
    Optional<Long> offset = Optional.absent();
    if (useTimeSync) {
        final String tomcat = configuration.getChildTomcatUrl();
        final String ntpHost = configuration.getNtpServerHost();
        try {
            offset = Optional
                    .<Long>fromNullable(TimeUtils.getNtpServerAndMachineTimeDifference(ntpHost, tomcat));
        } catch (final IOException e) {
            LOG.error("Unable to get time difference between time server: " + ntpHost + " and the server: "
                    + tomcat, e);
        }
    }

    final StatementStoreFactory storeFactory = new StatementStoreFactory(configuration);
    try {
        final RyaStatementStore parentStore = storeFactory.getParentStatementStore();
        final RyaStatementStore childStore = storeFactory.getChildStatementStore();

        LOG.info("Starting Merge Tool");
        if (configuration.getParentDBType() == ACCUMULO && configuration.getChildDBType() == ACCUMULO) {
            final AccumuloRyaStatementStore childAStore = (AccumuloRyaStatementStore) childStore;
            final AccumuloRyaStatementStore parentAStore = (AccumuloRyaStatementStore) parentStore;

            //do map reduce merging.
            //TODO: Run Merger
        } else {
            if (configuration.getMergePolicy() == TIMESTAMP) {
                final TimestampPolicyMergeConfiguration timeConfig = (TimestampPolicyMergeConfiguration) configuration;
                final Long timeOffset;
                if (offset.isPresent()) {
                    timeOffset = offset.get();
                } else {
                    timeOffset = 0L;
                }
                final MemoryTimeMerger merger = new MemoryTimeMerger(parentStore, childStore,
                        new VisibilityStatementMerger(), timeConfig.getToolStartTime(),
                        configuration.getParentRyaInstanceName(), timeOffset);
                merger.runJob();
            }
        }
    } catch (final Exception e) {
        LOG.error("Something went wrong creating a Rya Statement Store connection.", e);
    }

    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(final Thread thread, final Throwable throwable) {
            LOG.error("Uncaught exception in " + thread.getName(), throwable);
        }
    });

    LOG.info("Finished running Merge Tool");
    System.exit(1);
}

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From source file:org.apache.pdfbox.debugger.PDFDebugger.java

/**
 * Entry point./*w  ww. j a  va  2 s  .  com*/
 *
 * @param args the command line arguments
 * @throws Exception If anything goes wrong.
 */
public static void main(String[] args) throws Exception {
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    if (System.getProperty("apple.laf.useScreenMenuBar") == null) {
        System.setProperty("apple.laf.useScreenMenuBar", "true");
    }

    // handle uncaught exceptions
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread thread, Throwable throwable) {
            new ErrorDialog(throwable).setVisible(true);
        }
    });

    // open file, if any
    String filename = null;
    String password = "";
    boolean viewPages = true;

    for (int i = 0; i < args.length; i++) {
        if (args[i].equals(PASSWORD)) {
            i++;
            if (i >= args.length) {
                usage();
            }
            password = args[i];
        } else if (args[i].equals(VIEW_STRUCTURE)) {
            viewPages = false;
        } else {
            filename = args[i];
        }
    }
    filename = "/home/data/work/pdfxx_m.pdf";
    final PDFDebugger viewer = new PDFDebugger(viewPages);

    if (filename != null) {
        File file = new File(filename);
        if (file.exists()) {
            viewer.readPDFFile(filename, password);
        }
    }
    viewer.setVisible(true);
}

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