HttpSessionBindingListener was introduced with Servlet 2.3. Tomcat 3.3 is based on Servlet 2.2. The servlet.jar you added into your classpath must be for 2.3. I don't think you can be sure of any behavior with this configuration. If you want to use HttpSessionBindingListener you should upgrade to Tomcat 4.x
--- Filip Hanik <[EMAIL PROTECTED]> wrote: > also, when you load the stuff, also try > > Thread.currentThread().getContextClassloader().loadClass() > > which might work better than Class.forName() > > Filip > > -----Original Message----- > From: Larry Isaacs [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, February 04, 2003 3:01 PM > To: Tomcat Users List > Subject: RE: Tomcat 3.3.1 HttpSessionBindingListener > not found > > > This confirms that the problem class is on your > CLASSPATH. > However, putting servlet.jar on the CLASSPATH is not > a > good solution. > > Now servlet.jar can't see any classes in the > "TOMCAT_HOME/lib/common" classloader that it could > previously. You've traded one symptom for different > symptoms which may be more difficult to diagnose. > > The correct solution is to find the class on the > CLASSPATH that depends on servlet.jar and move > it off of the CLASSPATH to TOMCAT_HOME/lib/common, > TOMCAT_HOME/lib/apps, or the webapp's WEB-INF/lib > (assuming the class is in a jar). Which directory > is > best depends on the nature of the class. I would > recommend trying WEB-INF/lib first. This should be > doable since the webapp is working on other servers. > > Unfortunately, I know of no simple way to find the > offending class, other than trial and error. > > Larry > > > -----Original Message----- > > From: Daniel Lemberg [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, February 04, 2003 4:41 PM > > To: 'Tomcat Users List' > > Subject: RE: Tomcat 3.3.1 > HttpSessionBindingListener not found > > > > > > Yep, adding servlet.jar to the classpath did the > trick! Thanks! > > > > -----Original Message----- > > From: Larry Isaacs [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, February 04, 2003 3:14 PM > > To: Tomcat Users List > > Subject: RE: Tomcat 3.3.1 > HttpSessionBindingListener not found > > > > > > This means that the class that Class.ForName() is > trying > > to load has a dependency chain that includes a > class > > that has a dependency on > HttpSessionBindingListener, i.e. > > servlet.jar. > > > > That class with the servlet.jar dependency is > being found > > in a classloader that is below (i.e. a parent,) of > the > > "TOMCAT_HOME/lib/common" classloader that contains > > servlet.jar. Thus it can't see servlet.jar > classes. > > > > This class is likely to be in the CLASSPATH or > extension > > directory. If you haven't messed with the > CLASSPATH, then > > check the extensions directory. It is probably > likely > > that this class is a duplicate of one that is > located > > in the proper location. The systems that work > don't > > have this duplicate in the wrong location. > > > > HTH. > > > > Cheers, > > Larry > > > > > > > -----Original Message----- > > > From: Daniel Lemberg [mailto:[EMAIL PROTECTED]] > > > Sent: Tuesday, February 04, 2003 2:45 PM > > > To: '[EMAIL PROTECTED]' > > > Subject: Tomcat 3.3.1 HttpSessionBindingListener > not found > > > > > > > > > Hey, I'm running into an odd problem on Tomcat > 3.3.1 on Sun, > > > and am hoping > > > somone could help shed some light on the > problem. > > > > > > I have a few classes in a JAR file that > implement > > > HttpSessionBindingListener. > > > > > > In my test environment on my PC (Tomcat 3.3.1a > for Windows), > > > the classes > > > work fine. But on one of our customer's server > (which might > > > be configured > > > wrong), the classes throw: > > > > > > java.lang.NoClassDefFoundError: > > > javax/servlet/http/HttpSessionBindingListener > > > > > > whenever anything tries to load them (which we > do via > > > Class.ForName()). > > > > > > Note that we have some 40 other customers that > don't have > > > this problem, but > > > none of them that I know of are using Tomcat. > > > > > > Does anyone have any idea how this could happen? > How could > > > Tomcat not know > > > what a HttpSessionBindingListener is? I'm about > stumped. > > > > > > > > > > > --------------------------------------------------------------------- > > 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] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
