Hi, all classes of a webapp which do not come from tomcat server itself do share a common classloader which is an aggregation of the various classes in all WEB-INF/lib/*.jar and in WEB-INF/classes/**/*.class
If you get a NoClassDefFoundException, that probably mean you asked some class in server classloader to load some other class (probably by reflection) which is located in WEB-INF/lib. That simply impossible to do because classloaders use a child to parent classloading delegation model, not a parent (server) to child (webapp). Regards David Delbecq Jose Maria Ramirez Martinez a écrit : >Hi, everybody > >I have the next problem: >A servlet calls a non-servlet class, and this non-servlet class imports >classes from a jar file, >but the classloader does not find the class from the jar file >(so when I call the servlet from an internet browser, I get a >NoClassDefFoundException) > >But if a servlet class imports the same classes from the jar, the class loader >does find them... >I've tried some ways to solve this problem, like: > a) unpacking the classes from the jar (this works, but I had the problem > that 2 different jars contained >a file with the same name stored in the same directory, so one would replace >the other, and the class fails) > b) I thought it would be a security problem so I ran tomcat with a > SecurityManager, but it didn't solve the >problem.. > >does somebody has any idea why this is happening??? >can somebody help me to solve this... thanks in advance > >Jose Maria > > >___________________________________________________________ >$0 Web Hosting with up to 200MB web space, 1000 MB Transfer >10 Personalized POP and Web E-mail Accounts, and much more. >Signup at www.doteasy.com > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
