Andy McMullan created LOG4J2-1068:
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Summary: Exceptions not logged when using TcpSocketServer +
SerializedLayout
Key: LOG4J2-1068
URL: https://issues.apache.org/jira/browse/LOG4J2-1068
Project: Log4j 2
Issue Type: Bug
Components: Pattern Converters
Affects Versions: 2.3, 2.2, 2.1
Reporter: Andy McMullan
This issue was reported in BugZilla bug 57036:
https://bz.apache.org/bugzilla/show_bug.cgi?id=57036. The description there
covers the problem well:
"... in the Method format(final LogEvent event, final StringBuilder toAppendTo)
in ExtendedThrowablePatternConverter writing the Stacktrace in the logfile on
condition that the Throwable throwable from Log4jLogEvent is not null, but on
the Socketserver the Throwable throwable is always null, because it's defined
as transient."
I couldn't find the bug here in Jira, so I'm reporting again in case it has
been lost in the migration.
It's a major problem with a simple fix, so seems like it should be a high
priority.
I've worked around it for now by plugging in my own
ExtendedThrowablePatternConverter. My fix is to change this line:
if (throwable != null && options.anyLines() {
to this:
if ((throwable != null || proxy != null) && options.anyLines()) {
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