Send this to the Tomcat list. On Thu, Jan 13, 2011 at 6:58 AM, Sam Zilverberg <samzilverb...@gmail.com> wrote: > Hi, > > I'm running a wicket app on tomcat 6.0.20. > Once in a while I need to redeploy it (after fixing some stuff, adding > features and so on). > This is how I redeploy: > 1.Use tomcat manager to undeploy the running app. > 2.Deploy the new app by copying the new WAR file to a library inside tomcat. > > Everything seems fine but when I use the app I sometimes get a > java.lang.NoClassDefFoundError. > The class can be just about any class in the project and its libs. > Sometimes its a Hibernate related class, sometimes its a Wicket related > class and > sometimes its a class from my app. > Redeploying once (or a couple of times) solves the problem. > > This is very inconsistent and bothering. > After deploying I never know if the app is going to be ok or if one of its > pages will keep throwing internal errors on account of the > NoClassDefFoundError. > > Did any one ever encounter this kind of problem? > Do you have any ideas on what is causing this or what I can do to diagnose > this problem? > I'm clueless at the moment :( > > Thanks > -Sam >
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