load-on-startup / classloader bug??
i have a servlet that creates a thread in it's service method. this thread basically does a bunch of initialization stuff. when i add a load-on-startup element for this servlet in web.xml, it reports a NoClassDefFoundError on a class in the same package as the servlet. i have not seen this problem with any other load-on-startup servlets. the only difference is that this servlet kicks off a new thread. ideas? is this a bug, or just bad programming on my part (well, not really my part, but that's another story...)? i started to look through the startup/loader/class loader, but quickly got overwhelmed :) -kevin.
Re: load-on-startup / classloader bug??
doh! not only did i not mention which version i'm using, i also mispoke... mondays... so, i'm using the latest tomcat 4.0 out of cvs (co'd this morning). also, it's in the servlet init method, *not* it's service method where the thread is created. when i get some time, i'm going to try and recreate this in a small example that i can post. -kevin. kevin seguin wrote: > > i have a servlet that creates a thread in it's service method. this > thread basically does a bunch of initialization stuff. > > when i add a load-on-startup element for this servlet in web.xml, it > reports a NoClassDefFoundError on a class in the same package as the > servlet. > > i have not seen this problem with any other load-on-startup servlets. > the only difference is that this servlet kicks off a new thread. > > ideas? is this a bug, or just bad programming on my part (well, not > really my part, but that's another story...)? > > i started to look through the startup/loader/class loader, but quickly > got overwhelmed :) > > -kevin.
Re: load-on-startup / classloader bug??
> doh! not only did i not mention which version i'm using, i also > mispoke... mondays... > > so, i'm using the latest tomcat 4.0 out of cvs (co'd this morning). > > also, it's in the servlet init method, *not* it's service method where > the thread is created. > > when i get some time, i'm going to try and recreate this in a small > example that i can post. > > -kevin. > > kevin seguin wrote: > > > > i have a servlet that creates a thread in it's service method. this > > thread basically does a bunch of initialization stuff. > > > > when i add a load-on-startup element for this servlet in web.xml, it > > reports a NoClassDefFoundError on a class in the same package as the > > servlet. > > > > i have not seen this problem with any other load-on-startup servlets. > > the only difference is that this servlet kicks off a new thread. > > > > ideas? is this a bug, or just bad programming on my part (well, not > > really my part, but that's another story...)? > > > > i started to look through the startup/loader/class loader, but quickly > > got overwhelmed :) With the current code it will fail indeed. Remy
Re: load-on-startup / classloader bug??
> > With the current code it will fail indeed. > any reason(s) why? will this be fixed? thanks, -kevin.
Re: load-on-startup / classloader bug??
> > doh! not only did i not mention which version i'm using, i also > > mispoke... mondays... > > > > so, i'm using the latest tomcat 4.0 out of cvs (co'd this morning). > > > > also, it's in the servlet init method, *not* it's service method where > > the thread is created. > > > > when i get some time, i'm going to try and recreate this in a small > > example that i can post. > > > > -kevin. > > > > kevin seguin wrote: > > > > > > i have a servlet that creates a thread in it's service method. this > > > thread basically does a bunch of initialization stuff. > > > > > > when i add a load-on-startup element for this servlet in web.xml, it > > > reports a NoClassDefFoundError on a class in the same package as the > > > servlet. > > > > > > i have not seen this problem with any other load-on-startup servlets. > > > the only difference is that this servlet kicks off a new thread. > > > > > > ideas? is this a bug, or just bad programming on my part (well, not > > > really my part, but that's another story...)? > > > > > > i started to look through the startup/loader/class loader, but quickly > > > got overwhelmed :) > > With the current code it will fail indeed. so, is this considered a bug in tc 4.0b4? is it something you plan on fixing? is it something i could fix myself? i'm trying to migrate to tc 4 (from tc 3.x) so i'd like to know whether or not this will be fixed so i can decide what to do about servlets that have this problem. if it's fixable, i'll either wait for the fix or do it myself. if it's a big deal to fix, i'll have to look into reworking my servlets. just looking for some expert advice here. i'm not too familiar with the catalina internals. thanks.
