How do you write a full stack trace to the log?

Question

I was catching an exception and trying to write the stack trace to the logs like this:

log.warn(e.getMessage());

But all it said was

Answer 1

You can use

logger.log(Level.WARN, "logged exception", ex);

or

logger.warn("logged exception", ex);

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Resources :

• How to print the stack trace of an exception using Log4J (or Commons Logging)
• logging.apache.org - Category