Hello Hamlet, As of logback version 0.9.19, WriterAppender has been replaced by OutputStreamAppender. See also http://logback.qos.ch/news.html in particular the description of changes in version 0.9.19 copied below: Breaking change: FileAppender now expects an Encoder In response to LBCORE-128, WriterAppender has been renamed as OutputStreamAppender, FileAppender now sub-classing the latter. OutputStreamAppender and sub-classes now take an Encoder instead of a Layout. Contrary to layouts which simply transform a logging event into a String, an encoder is responsible for writing the actual event or more accurately the representation of the event onto the output stream. The role of the enclosing appender is now limited to managing the output stream (opening/closing) but not writing actual contents onto the stream. This change will require modifications to existing configuration files. We hope to make up for this inconvenience with cool new features which are only possible using encoders. During a transition period, layouts passed as parameter will be automatically wrapped by an encoder so that configuration files in the old format (using a layout instead of encoder) will continue to work unmodifed. HTH, On 04/06/2010 10:36 AM, HamletDRC wrote:
I was using LogBack 0.9.9 and the WriterAppender class.
In my upgrade to 0.9.21 the class disappeared.
Where did it go?
----- -- Hamlet D'Arcy