Thank you so much Piotr for detailed explanation of bug. I will create JIRA ticket ASAP and shortly will reply with details also you have asked.
Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: Piotr P. Karwasz <piotr.karw...@gmail.com> Sent: Saturday, March 5, 2022 7:23:34 PM To: Log4J Users List <log4j-user@logging.apache.org> Subject: Re: java.lang.ClassCastException: org.apache.log4j.bridge.AppenderWrapper cannot be cast to org.apache.log4j.FileAppender *** External email: Verify sender before opening attachments or links *** Hi Pooja, On Sat, Mar 5, 2022 at 1:48 PM Pooja Pandey <pooja.pan...@asg.com.invalid> wrote: > Hi Piotr, > > I don’t understand what is the bug?? Can you please help me with JIRA > ticket summary and description. The bug is that if you use a native Log4j 1.2 appender (a derivative class of org.apache.log4j.FileAppender for example) a call to `Logger.getAppender(String)` gives you an AppenderWrapper of an AppenderAdapter instead of the original class. Such useless encapsulations should not be present, but apparently we missed some. Summarizing "Log4j 1.x bridge Logger.getAppender returns a wrapped AppenderAdapter" In the Jira ticket just describe your exact situation: are you using a configuration file or are you adding the appenders in code? Are you always using a LoggerFactory? My wild guess is that you configure a subclass of org.apache.log4j.FileAppender (let's call it com.example.FileAppender) in a configuration file. In your code you call `Logger.getAppender()` and you get an AppenderWrapper instead of com.example.FileAppender. If the guess is true, it is an easy fix. Piotr --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
