Ray, It is a shame that Jonas does not provide an application classloader property like some of the other app servers we use. That would definitely take care of the problem.
I wrapped log4j 1.2 beta so it looks like I may have to backtrack and rewrite my log4j extensions and wrapper to use the stable release of log4j until someone at Objectweb fixes their log4j wrapper. Thanks for the response, Bill -----Original Message----- From: Ray Thomas [mailto:[EMAIL PROTECTED]] Sent: Monday, April 01, 2002 4:01 PM To: Log4J Users List Subject: Re: Jonas 2.4.4 and log4j 1.2beta incompatibility The new version of the Servlet spec provides for Classloader differentiation between versioned jars (as a result of similar conflicts between the XML parser included in most servlet engines and different parsers included in web applications.) See the "Rules for class loading" section of http://developer.java.sun.com/developer/technicalArticles/Servlets/servl etapi2.3/ The Jonas team might need to consider adding similar infrastructure to their server so you might want to drop a note in their suggestion box. In the meantime, you might be able to write and register a custom ClassLoader in your app that accomplishes the same sort of class namespace partitioning. See an article on writing custom classloaders at http://www.javaworld.com/javaworld/jw-03-2000/jw-03-classload.html -R ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, April 01, 2002 2:15 PM Subject: Jonas 2.4.4 and log4j 1.2beta incompatibility > We downloaded the latest version of Jonas 2.4.4 that uses log4j v1.0.4 > set of API's. > > We are using the log4j 1.2 beta exclusively and when I put the log4j 1.2 > beta jar file in front of the class path, Jonas throws a > java.lang.NoSuchMethodError at > org.objectweb.monolog.wrapper.log4j.MonologCategory.getInstance(MonologC > ategory.java:25). > > Turns out that the method > Category getInstance(String name, CategoryFactory factory) > that the Jonas log4j wrapper uses has been deprecated in the beta > version of log4j. > > I guess I can decompile all of the Jonas's log4j wrapper classes and > rewrite but that sounds a bit extreme for such a global problem. > > I thought that log4j beta was supposed to be backwards compatible. > > Has anyone else experienced this or have a solution to the problem? > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
