Java using multiple logger types in the same file skipping log statements

Question

There is an maven OSGI component in which I have a call to EclipseStarter.stop() statement which shuts down the OSGI framework. There are a couple of log statements printed after this line. I have used pax-logging with log4j2 as the logging backend and JCL at the frontend.

Since OSGI framework is down the log messages do not print through pax-logging-log4j2. Therefore I am trying to use java util logging to print these messages. The logger initialization in the java file is done as follows.

private static final Log log = LogFactory.getLog(MyClass.class);
private static final Logger logger = Logger.getLogger(MyClass.class.getName());

log.info("Before shutdown");

EclipseStarter.stop();

logger.log(Level.INFO, "After shutdown JUL");    
log.info("After shutdown JCL");

The util logging statement seems to be skipping when I debugged.

Did you verify that there are handlers attached to `MyClass` logger, parents of `MyClass` logger or root logger? — jmehrens, Aug 17 '17 at 20:28
Looks like it doesnt. handlers.publish(record) in method log(Record) is skipped. — Asma Zinneera Jabir, Aug 18 '17 at 05:04
Attach a handler. Add a JUL log statement before the `stop` call too to aid in debugging. — jmehrens, Aug 18 '17 at 13:12
Adding handlers again programatically worked. Thank you for the suggestion. You can add it as the answer so that I can accept it. — Asma Zinneera Jabir, Aug 21 '17 at 04:49

score 0 · Answer 1 · answered Aug 22 '17 at 14:19

0

In order to see output from a logger you have to attach a Handler subclass. You can add them from code or you can create a logging.properties.

answered Aug 22 '17 at 14:19

jmehrens

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Java using multiple logger types in the same file skipping log statements

1 Answers1