On 04/10/2012 09:25, Nick Katsipoulakis wrote: > Bonjorno Filippo and Gracie for your immediate answer. > I also do not see anything wrong with my code, since the Singleton class > I am using has been tested in other web > services as well. My suspicion is that Apache Tomcat has some cleaning > up mechanisms, that react negatively when they come across my Singleton > object. > I am investigating on the matter and I am trying to dig deeper on the > Memory leaks that may occur on Tomcat. > Do you happen to know (or anyone else) any good tools for monitoring > memory of each thread in Tomcat? > A tool that can get integrated into Netbeans would be a plus.
The problem - as the log messages make clear - is the use of ThreadLocal. This will help you understand what is going on: http://people.apache.org/~markt/presentations/2010-11-04-Memory-Leaks-60mins.pdf This will help you trace the leaks in your application: http://www.yourkit.com (other profilers are available - that is the one I use because they give free license to ASF committers) Mark --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
