https://issues.apache.org/bugzilla/show_bug.cgi?id=52676
Bug #: 52676
Summary: Location information unavailable when FQCN ends in .
Product: Log4j
Version: 1.2
Platform: Macintosh
Status: NEW
Severity: normal
Priority: P2
Component: Layout
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
This is arguably a bug in the sample application.
When both extending and wrapping Logger, the sample application suggests that
"It's usually a good idea to add a dot suffix to the fully qualified class
name..."
However, if you do that, the location-related format conversions (%F, %L, etc)
used by org.apache.log4j.PatternLayout do not work correctly. (They print
question marks instead of the actual location info.)
The problem is the following line (org.apache.log4j.spi.LocationInfo, line
143):
if(fqnOfCallingClass.equals(thisClass)) {
//...
which checks for an exact match between the FQCN and the class name reported in
the stack trace. The trailing dot prevents the match from succeeding, so the
location information is not fetched. This code should be modified to accept a
trailing dot as a valid match.
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