Thanks Robert, I added this bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=409436
Problem is caused by programmatically added servlets not be removed from the context on a stop, so they already exist on the restart, causing the registration process to return null (correctly according to the servlet spec api). Looking into it. Jan On 30 May 2013 01:19, Robert Novotny <[email protected]> wrote: > Hi, > I have created a simple tutorial project that uses Spring 3.2 web > application without web.xml, using WebApplicationInitializer mechanism > instead. > > However, whenever I setup manual reloading within Maven plugin: > <configuration> > <reload>manual</reload> > </configuration> > > and press Enter within the console, the application context gets reloaded, > but the WebApplicationInitializer throws a NullPointerException (see below) > > I am attaching a simple project, which indicated that the reason may lie > in the WebApplicationInitializer or the servletcontext not being properly > cleaned up in the undeployment phase. The actual line is: > > ServletRegistration.Dynamic dispatcher = > servletContext.addServlet("**dispatcher", > new DispatcherServlet(ctx)); > > while addServlet() method returns null whenever the servlet is already > mapped. However, the freshly deployed application should not have this > servlet already mapped and it should not return null. > > This issue affects the 8.1.x branch as well, the last version of Jetty > Maven plug-in that works without NPEs is the 8.1.9.v20130131. > > The exception is: > > java.lang.NullPointerException > at jettybug.**WebApplicationInitializer.**onStartup(** > WebApplicationInitializer.**java:22) > at org.springframework.web.**SpringServletContainerInitiali** > zer.onStartup(**SpringServletContainerInitiali**zer.java:180) > at org.eclipse.jetty.plus.**annotation.**ContainerInitializer.** > callStartup(**ContainerInitializer.java:105) > at org.eclipse.jetty.annotations.**ServletContainerInitializerLis* > *tener.doStart(**ServletContainerInitializerLis**tener.java:107) > at org.eclipse.jetty.util.**component.AbstractLifeCycle.** > start(AbstractLifeCycle.java:**69) > at org.eclipse.jetty.util.**component.ContainerLifeCycle.** > start(ContainerLifeCycle.java:**108) > at org.eclipse.jetty.util.**component.ContainerLifeCycle.** > doStart(ContainerLifeCycle.**java:82) > > Robert > > > > _______________________________________________ > jetty-users mailing list > [email protected] > https://dev.eclipse.org/mailman/listinfo/jetty-users > > -- Jan Bartel <[email protected]> www.webtide.com – Developer advice, services and support from the Jetty & CometD experts.
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