On 08/08/2007, at 7:22 AM, Curt Arnold wrote:
The log4j 1.2 layout can produce non well formed content for some atypical content (a message with an embedded -->, threads containing & or >, etc). Plus it does not output MDC content (log4j 1.3 does, but shares the other shortcomings). I've been tempted to overhaul it but am hesitant to break code that might have compensated for its idiosyncracies. My current thought is to add an XsltAppender to the extras companion that uses the xslt support added in idk 1.4. If no transform is provided, a default transform that results in a format compatible with the current output but done right. If you wanted some other format, you could embed the xslt transform if you were using log4j 1.2.15 or higher or the replacement configurator in the extras companion.
Hmm, this is a tough one. If we think (and I don't know myself, I don't use XMLLayout at all) that these are really bugs, then we should feel free to address them and note in the release notes that this might be an incompatible change if people have relied on that odd behavior.
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