https://issues.apache.org/bugzilla/show_bug.cgi?id=46144
Summary: QuietWriter.write should ignore all Exceptions
Product: Log4j
Version: 1.2
Platform: PC
OS/Version: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: Appender
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QuietWriter.write should ignore all Exception's, not only IOException.
Actually, it should ignore NullPointerException or just check input string for
null.
java.util.Writer.write
throws NullPointerException if passed string is null, and if null string
accidentally appeared in QuietWriter.write, it should be ignored, rather then
NullPointerException thrown.
Currently we have rare NullPointerException in logs somewhere inside log4j, and
we cannot repeat this situation:
===
java.lang.NullPointerException
at java.io.Writer.write(Writer.java:140)
at org.apache.log4j.helpers.QuietWriter.write(QuietWriter.java:48)
at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:309)
at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
at
ru.yandex.video.converter.convert.ConfiguredFileAppender.append(ConfiguredFileAppender.java:23)
at
org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
===
log4j is 1.2.15. Proposed solution avoids NullPointerException (though probably
causes some information loss).
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