// exceptions/LoggingExceptions2.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// Logging caught exceptions

// {ErrorOutputExpected}

import java.util.logging.*;

import java.io.*;

public class LoggingExceptions2 {

private static Logger logger =

Logger.getLogger("LoggingExceptions2");

static void logException(Exception e) {

StringWriter trace = new StringWriter();

e.printStackTrace(new PrintWriter(trace));

logger.severe(trace.toString());

}

public static void main(String[] args) {

try {

throw new NullPointerException();

} catch(NullPointerException e) {

logException(e);

}

}

}

/* Output:

___[ Error Output ]___

May 09, 2017 6:07:17 AM LoggingExceptions2 logException

SEVERE: java.lang.NullPointerException

at

LoggingExceptions2.main(LoggingExceptions2.java:17)

*/