I don't think this issue is related to Derby because I am seeing this problem too -- but I am not using Derby.
What version of Tomcat are you using? I am using 6.0.24 on either Windows or Solaris 10 and see these errors too, like: Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.threadlo...@1a517bd]) and a value of type [scala.collection.mutable.HashMap] (value [Map()]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.threadlo...@258c74]) and a value of type [net.liftweb.common.Empty$] (value [Empty]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.threadlo...@258c74]) and a value of type [net.liftweb.common.Empty$] (value [Empty]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap SEVERE: A web application created a ThreadLocal with key of type [org.slf4j.impl.CopyOnInheritThreadLocal] (value [org.slf4j.impl.copyoninheritthreadlo...@1bb35b]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap Note that while there is a Lift object, there are also lots of other objects, so I'm not convinced that there is a problem with Lift... I got the impression that Tomcat added this detection logic in 6.0.24. I don't know how to really fix it. (BTW, I found that I usually only need to kill, not a kill -9.) -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
