Tomcat 6.0.24+ logs SEVERE errors on the console during shutdown from WebappClassLoader clearReferencesThreads and clearThreadLocalMap

Since Tomcat 6.0.24 and higher Tomcat now actively verifies potential "shutdown" problems concerning application created thread, ThreadLocal instances etc.
If it encounters such issues, it reports this as SEVERE errors, which by default end up in the console output or catalina.out.
While these reporting "issues" indeed need looking into, the Console logging is rather annoying.

For the Jetspeed 2.2.1 installer which will bundle Tomcat 6.0.26, I'll add an override of the Tomcat logging.properties to redirect these errors to the localhost FileHandler instead (logs/localhost.

.log).

For Jetspeed 2.2.2 the reported "issues" warrant further investigation to see if these need to be solved or not.