you're not holding a reference to the class in a session are you? Sessions aren't released until they timeout.
yes, it is a new classloader each time. that's how reload works since you cannot unload a class in java without destroying the classloader. Charlie > -----Original Message----- > From: Thomas Ehlen [mailto:[EMAIL PROTECTED]] > Sent: Friday, February 15, 2002 9:11 AM > To: Tomcat Users List > Subject: Problems with Manager reload, memory usage and garbage > collection. > > > Each time I reload my application with the Manager servlet > the memory usage > increase. > > Spec: I have Tomcat 4.0.2 and JDK 1.3.1_02 running on a > Windows2k machine. > > I have located my problem using JProbe with Tomcat 4.0.2. > Looking at the > instance summary before and after a reload I see that there > is one class > that isn't GC'd. So after 10 reloads I have 10 instances of > this class. The > class is a singelton and lookes something like this: > > public class MySingelton > { > private static MySingelton singelton; > > private Hashtable resources; > > private MySingelton() > { > // Create a Hashtable with some resources here > } > > public static Object getResource( String name ) > { > return resources.get( name ); > } > > public static synchronized void configure() > { > singelton= new MySingelton(); > } > } > > This Singelton are only called in the init method of my servlet; e.g. > > public void init( ServletConfig config ) > throws ServletException > { > MySingelton.configure(); > } > > > I guess that Tomcat sets up a new ClassLoader each time an > application is > reloaded. So why can't MySingelton be garabage collected? > Somewhere there > must still be a reference to it and it isn't in my code for sure. > > Please anyone got a suggestion how to solve my problem? > > Thanks! > Thomas Åhlén > > > > -- > To unsubscribe: <mailto:[EMAIL PROTECTED]> > For additional commands: <mailto:[EMAIL PROTECTED]> > Troubles with the list: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>