I am still trying to understand why you have a custom Logger and a custom
FileAppender. What additional features do they provide? Can you perhaps create
a zip of your customizations so we can understand?
Thanks
Ralph
> On Mar 4, 2022, at 7:00 PM, Pooja Pandey <pooja.pan...@asg.com.INVALID> wrote:
>
> By overriding getAppender in our customLogger, the cast Exception could be
> fixed, however we are still having some minor issues in reading property
> value but may be this new issue is due to some other problems. I am still
> trying to figure out.
>
>
>
>
> @Override
> public Appender getAppender(final String name) {
> AppenderWrapper appenderWrapper = (AppenderWrapper)
> super.getAppender(name);
> return
> ((AppenderAdapter.Adapter)appenderWrapper.getAppender()).getAppender();
> }
>
>
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> ________________________________
> From: Pooja Pandey <pooja.pan...@asg.com.INVALID>
> Sent: Saturday, March 5, 2022 7:25:24 AM
> 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 ***
>
>
> Actually, in first go due to time constraint, we are using log4j bridge
> instead of direct log4j2 API to migrate our legacy huge code from log4j1 to
> log4j2.
>
> In code we use custom FileAppender
>
> When we Logger.getAppender(), it is returning AppenderWrapper now with the
> bridge.
>
> Get Outlook for iOS<https://aka.ms/o0ukef>
> ________________________________
> From: Piotr P. Karwasz <piotr.karw...@gmail.com>
> Sent: Saturday, March 5, 2022 12:15:55 AM
> 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 ***
>
>
> On Fri, Mar 4, 2022 at 7:32 PM Ralph Goers <ralph.go...@dslextreme.com> wrote:
>> 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.
>
> The `org.apache.log4j.FileAppender` class is useful to inherit from
> it. I have successfully tested the `RollingFileAppender` from Apache
> Log4j Extras as native Log4j 1.x appender (there is no builder for
> this one) running through the bridge.
>
> I don't believe we actually want to use
> `org.apache.log4j.FileAppender` instead of
> `org.apache.logging.log4j.core.appender.FileAppender`. I suppose that
> the latter gives a better performance.
>
> Piotr
>
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