upgrading log4j 1.x to log4j2

[giervella]

I'm using SmartGWT 4.1 and I'm trying to upgrade log4j1.x version to log4j2. But when I start the application I've got an error with this message:

SRVE0293E: [Errore servlet]-[DataSourceLoader]: java.lang.NoClassDefFoundError: com.isomorphic.base.Init (initialization failure)

Futhermore in the old log4j.isc.config.xml file I have an appender like this:

<appender name="SmartClientLog" class="com.isomorphic.log.RevolvingMemoryAppender">

But I don't know how to translate this appender in new log4j2 format.

Could you help me?
Thank you

[Isomorphic]

log4j2 is not backwards compatible so this won't be a matter of simply swapping in libraries.

We're not sure what's motivating you to move to a new library, but note that 5.0 supports slf4j - see this announcement.

[claudiobosticco]

Now that version 1 of Log4j has reached end of life, what are your suggestions? Will you support log4j2 in a future release of SmartClient? Other?