Re: java.lang.ClassCastException: org.apache.log4j.bridge.AppenderWrapper cannot be cast to org.apache.log4j.FileAppender
Ralph Goers <[email protected]>
| Newsgroups | gmane.comp.jakarta.log4j.user |
|---|---|
| Message-ID | <[email protected]> |
At this point this would be expected. We don’t actually have org.apache.log4j.FileAppender in log4j-1.2-api. We map it to org.apache.logging.log4j.core.appender.FileAppender. I am a little surprised though as it looks like Gary added the Log4j 1.2 FileAppender to log4j-1.2-api but he didn’t remove the builder. If he had it would have created org.apache.log4j.FileAppender as you want. That said, may I ask why you need access to the FileAppender? I’m just wondering if Log4j 2 already has what you are looking for implemented. Ralph > On Mar 4, 2022, at 2:32 AM, Pooja Pandey <[email protected]> wrote: > > We are calling > Logger.getLogger(<name>, <loggerFactory>) > > And in AppenderAttachableImpl aai;, this is returning AppenderWrapper, which we are trying to cast to FileAppender as we were doing when we were using log4j1.x. > > -----Original Message----- > From: Gary Gregory <[email protected]> > Sent: Friday, March 4, 2022 2:48 PM > To: [email protected] > Cc: Log4J Users List <[email protected]> > 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 *** > > > What is the stack trace? > > Gary > > On Fri, Mar 4, 2022, 03:36 Pooja Pandey <[email protected]> > wrote: > >> Hi Team, >> >> >> >> I am trying to migrate from log4j1.x to log4j2.17.2 using log4j1.x >> bridge approach. I am getting below ClassCastException error message. >> Please let me know if you have any idea how to fix this. >> >> >> >> java.lang.ClassCastException: org.apache.log4j.bridge.AppenderWrapper >> cannot be cast to org.apache.log4j.FileAppender >> >> >> >> Thanks, >> >> Pooja >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] >