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http://issues.apache.org/bugzilla/show_bug.cgi?id=33444

           Summary: UDPAppender encoding problems
           Product: Log4j
           Version: 1.3alpha
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Appender
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


UDPAppender.append-method assumes that String.getBytes(null) works the same as
String.getBytes(), that is it encodes the string with the system default 
encoding.

However, that behaviour is unspecified in the JDK API documentation. In fact it
throws a NullPointerException at least on my VM implementation:

java.fullversion: J2RE 1.4.1 IBM J9 build 20030915 (JIT enabled)

Also if an encoding is used that expands 1 character to many bytes, the UDP
message is truncated. That is because the datagram length is taken from the
length of the original string, not the encoded representation.

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