Vaadin 14 with CDI on Wildfly 8.2.1 -> NullpointerException in Beanlookup

Flow
1

Hi,
I try to run the simple StarterApp (https://vaadin.com/start/latest) with CDI and Java EE on a Wildfly 8.2.1 -Server but all try’s and modification helps.
Every time I’ve got the following error message:

2020-01-14 16:45:21,213 ERROR [io.undertow.request]
 (default task-6) UT005023: Exception handling request to /simpleApp/: java.lang.NullPointerException
        at com.vaadin.cdi.BeanLookup.lookupOrElseGet(BeanLookup.java:86) [vaadin-cdi-11.0.1.jar:]

        at com.vaadin.cdi.BeanLookup.lookup(BeanLookup.java:104) [vaadin-cdi-11.0.1.jar:]

        at com.vaadin.cdi.CdiVaadinServletService.lookup(CdiVaadinServletService.java:171) [vaadin-cdi-11.0.1.jar:]

        at com.vaadin.cdi.CdiVaadinServletService.init(CdiVaadinServletService.java:123) [vaadin-cdi-11.0.1.jar:]

        at com.vaadin.cdi.CdiVaadinServlet.createServletService(CdiVaadinServlet.java:91) [vaadin-cdi-11.0.1.jar:]

        at com.vaadin.flow.server.VaadinServlet.createServletService(VaadinServlet.java:185) [flow-server-2.1.3.jar:2.1.3]

        at com.vaadin.flow.server.VaadinServlet.init(VaadinServlet.java:72) [flow-server-2.1.3.jar:2.1.3]

        at com.vaadin.cdi.CdiVaadinServlet.init(CdiVaadinServlet.java:54) [vaadin-cdi-11.0.1.jar:]

        at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:117) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at org.wildfly.extension.undertow.security.RunAsLifecycleInterceptor.init(RunAsLifecycleInterceptor.java:79)
        at io.undertow.servlet.core.LifecyleInterceptorInvocation.proceed(LifecyleInterceptorInvocation.java:103) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:220) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.core.ManagedServlet.getServlet(ManagedServlet.java:163) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:84) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:129) [undertow-websockets-jsr-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166) [undertow-servlet-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759) [undertow-core-1.1.0.Final.jar:1.1.0.Final]

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_112]

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_112]

        at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_112]

The Wildfly spec say’s up from Wildfly 8.2.0 it has CDI 1.2.

But I think the BeanManager would not be injected into the CdiVaadinServlet and later it failed with the NullPointer.

Anybody now how can i fix it or knows a workaround.

And “No” I can’t switch to a newer Wildlfy version.

Thanks in advance

Heiko

2

Your Wildfly version is too old. If you take a look here https://github.com/vaadin/platform/releases/tag/14.1.0 you see that Wildfly 14+ is mentioned in compatibility spec.

3

Sorry for the late answer.
Yes thats right and was defined inside the vaadin 14 release notes but
Wildfly 8.2.1 has all rquirements.

I found a simple workaround.
With creating a simple servlet like below it works.

@WebServlet(urlPatterns = "*", name="MyServlet"
public class VaadinCdiServlet extends CdiVaadinServlet {
}