Hi,
I am using logback (latest version) on Tomcat, and have this error when
trying to start the application:
/Exception in thread "RMI RenewClean-<ip>:<port>"
java.lang.ClassCircularityError: java/util/logging/LogRecord/
/at
org.slf4j.bridge.SLF4JBridgeHandler.getSLF4JLogger(SLF4JBridgeHandler.java:200)/
/at
org.slf4j.bridge.SLF4JBridgeHandler.publish(SLF4JBridgeHandler.java:289)/
/at java.util.logging.Logger.log(Logger.java:458)/
/at java.util.logging.Logger.doLog(Logger.java:480)/
/at java.util.logging.Logger.logp(Logger.java:596)/
The error is blocking Tomcat startup.
The application has logback and jul-over-slf4j bridge JARs inside, and
is using a servlet context listener to run
/SLF4JBridgeHandler.removeHandlersForRootLogger()/ and
/SLF4JBridgeHandler.install()/ on startup. The /logback.xml/ used has
/ch.qos.logback.classic.jul.LevelChangePropagator/ context listener in
it, with /resetJUL/ set to /true/.
I saw a thread on this mailing list in February 2011
<http://mailman.qos.ch/pipermail/slf4j-user/2011-February/001044.html> with
the similar issue so it might be quite old. Tomcat version is 7, but the
mail list thread and this StackOverflow
<http://stackoverflow.com/questions/2656565/classcircularityerror-when-running-tomcat6-from-eclipse>
question are using Tomcat 6 and having the same problem.
As the last answer on StackOverflow correctly says, error is
reproducible only if the /LevelChangePropagator/ element is in the
beginning of /logback.xml/. Moving it to the end of the file fixes the
issue, so it has an easy workaround.
If you have problems reproducing it please let me know, I'll try to
provide a test project.