https://issues.apache.org/bugzilla/show_bug.cgi?id=50166
Summary: DailyRollingFileAppender and FileAppender fail to
preserve functionality of WriterAppender.writeFooter()
Product: Log4j
Version: 1.2
Platform: Macintosh
Status: NEW
Severity: normal
Priority: P2
Component: Appender
AssignedTo: log4j-dev@logging.apache.org
ReportedBy: larrywes...@computer.org
1.2.14 (appears to be unchanged in 1.2.16)
When DRFA.subAppend() wants to roll over, it calls rollOver(), which calls
FileAppender.closeFile() which only closes the QuietWriter.
It does not invoke grandparent class (WriterAppender).close(), which would call
writeFooter() and reset().
So DRFA is not preserving the contract of the WriteAppender superclass.
And since rollOver() is package-private rather than protected, I cannot fix the
problem in a subclass of DRFA.
The fix appears simple: I assume the call to this.closeFile() rather than
close() is essential, but FileAppender.closeFile() could and probably should
mimic WriterAppender.close() by calling writeFooter() and reset().
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