Question About Unremoved ThreadLocations

[Taylor Venable]

Hi there, I've been writing a servlet using Kawa, and it's been quite 
awesome. But I've been getting some messages from Tomcat about memory 
leaks due to unremoved ThreadLocals (here's an example):

Dec 15, 2011 3:55:04 PM org.apache.catalina.loader.WebappClassLoader 
checkThreadLocalMapForLeaks
SEVERE: The web application [/sis-conversion] created a ThreadLocal with 
key of type [gnu.mapping.ThreadLocation.InheritingLocation] (value 
[gnu.mapping.ThreadLocation$InheritingLocation@71c94ff3]) and a value of 
type [gnu.mapping.SharedLocation] (value 
[gnu.mapping.SharedLocation[line-length/(dynamic)]]) but failed to 
remove it when the web application was stopped. Threads are going to be 
renewed over time to try and avoid a probable memory leak.

This seems to be related to using fluids, since they're implemented 
using ThreadLocation objects (if my understanding is correct). I'm 
assuming that for my case in particular this is probably not a big 
problem because Tomcat can renew the threads and effectively do away 
with the wasted memory. Now for my admittedly vague and probably 
ignorant question: Is there anything I can do to "fix" the leaks from 
within my servlet?

I've put an example at https://gist.github.com/1487521 for more clarity. 
Thanks for corrections, additional information, and advice.

-- 
Taylor Chriſtopher Venable
Senior Programmer/Analyst
IPFW IT Services KT 204K / 209A
2101 E. Coliseum Blvd.
Fort Wayne, IN 46805
260-481-0720