It's alright. I ve managed to solve it finally. The reason behind this error was that, I had 2 version of wicket 1.2.4 and 1.2.6 being loaded up into the appserver memory. Not sure which was the version that overrided one another and hence taken by the appserver in the end. What odd is that, it runs fine during the war file loading up, but as when the webapp runs during runtime, it just generate this error. Anyway, hope this will provide one of the trace that could help if somebody face the same problem as me in the future. *wink* *wink*<^O^><3
Lec wrote: > > What does this error means? I got this error when I my webapp war into > another newer version of application server. I have been trying to figure > out the whole day finding what the root problem is, but still couldn't > find any. Help needed > > 29b66-d8b8-429a-922c-a6b41e70348c;|StandardWrapperValve[fcs]: > Servlet.service() > for servlet fcs threw exception > java.lang.VerifyError: class wicket.behavior.AbstractAjaxBehavior > overrides fina > l method getComponent.()Lwicket/Component; > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12 > 4) > at > org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp > ClassLoader.java:1997) > at > org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa > der.java:948) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1428) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1292) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12 > 4) > at > org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp > ClassLoader.java:1997) > at > org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa > der.java:948) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1428) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1292) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12 > 4) > at > org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp > ClassLoader.java:1997) > at > org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa > der.java:948) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1428) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1292) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12 > 4) > at > org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp > ClassLoader.java:1997) > at > org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa > der.java:948) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1428) > at > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa > der.java:1292) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) > at wicket.ajax.markup.html.AjaxLink.<init>(AjaxLink.java:60) > at wicket.ajax.markup.html.AjaxLink.<init>(AjaxLink.java:47) > at com.fcs.web.FcsHeaderPanel$1.<init>(FcsHeaderPanel.java:56) > at com.fcs.web.FcsHeaderPanel.<init>(FcsHeaderPanel.java:56) > at com.fcs.web.FcsWebPage.<init>(FcsWebPage.java:38) > at com.fcs.web.FcsWebPage.<init>(FcsWebPage.java:31) > at > com.fcs.web.UserProfile.UserBasePage.<init>(UserBasePage.java:31) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct > orAccessorImpl.java:39) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC > onstructorAccessorImpl.java:27) > at java.lang.reflect.Constructor.newInstance(Constructor.java:513) > at java.lang.Class.newInstance0(Class.java:355) > at java.lang.Class.newInstance(Class.java:308) > at > wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:55) > > at > wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveH > omePageTarget(DefaultRequestTargetResolverStrategy.java:340) > at > wicket.request.compound.DefaultRequestTargetResolverStrategy.resolve( > DefaultRequestTargetResolverStrategy.java:104) > at > wicket.request.compound.AbstractCompoundRequestCycleProcessor.resolve > (AbstractCompoundRequestCycleProcessor.java:48) > at wicket.RequestCycle.step(RequestCycle.java:931) > at wicket.RequestCycle.steps(RequestCycle.java:1040) > at wicket.RequestCycle.request(RequestCycle.java:524) > at > wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:205) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) > at > org.apache.catalina.core.ApplicationFilterChain.servletService(Applic > ationFilterChain.java:397)What does this mean? 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