[jboss-jira] [JBoss JIRA] (WFLY-10754) NullPointerException using Stateless with configured interceptors

[Matej Novotny (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-10754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612174#comment-13612174 ] 

Matej Novotny commented on WFLY-10754:
--------------------------------------

[~sviluppatorefico] I meant if you could try and remove [{{OKInterceptor}} from {{beans.xml}}|https://github.com/flashboss/interceptors-bug/blob/master/src/test/resources/META-INF/beans.xml#L7].
It doesn't need to be there for interceptors triggered via {{@Interceptors()}} annotation and for me it removes the problem.

> NullPointerException using Stateless with configured interceptors
> -----------------------------------------------------------------
>
>                 Key: WFLY-10754
>                 URL: https://issues.jboss.org/browse/WFLY-10754
>             Project: WildFly
>          Issue Type: Bug
>          Components: CDI / Weld
>    Affects Versions: 13.0.0.Final
>         Environment: WildFly 13.0.0.Final and java 10.0.1
>            Reporter: Luca Stancapiano
>            Assignee: Matej Novotny
>
> I report a strange behavior on WildFly 13 when configuring interceptors within stateless. Below I describe the scenario:
> Here a simple interceptor:
> {code:java}
> package it.vige.injection.interceptors;
> import javax.interceptor.AroundInvoke;
> import javax.interceptor.Interceptor;
> import javax.interceptor.InvocationContext;
> @Interceptor
> public class OKInterceptor {
> 	@AroundInvoke
> 	public Object aroundInvoke(InvocationContext ic) throws Exception {
> 		return ic.proceed();
> 	}
> }
> {code}
> Here an annotation used as interceptor binding:
> {code:java}
> package it.vige.injection.interceptors;
> import static java.lang.annotation.ElementType.CONSTRUCTOR;
> import static java.lang.annotation.ElementType.METHOD;
> import static java.lang.annotation.ElementType.TYPE;
> import static java.lang.annotation.RetentionPolicy.RUNTIME;
> import java.lang.annotation.Retention;
> import java.lang.annotation.Target;
> import javax.interceptor.InterceptorBinding;
> @Retention(RUNTIME)
> @Target({ METHOD, TYPE, CONSTRUCTOR })
> @InterceptorBinding
> public @interface NotOK {
> }
> {code}
> Here an interceptor annotated with the interceptor binding:
> {code:java}
> package it.vige.injection.interceptors;
> import javax.interceptor.AroundInvoke;
> import javax.interceptor.Interceptor;
> import javax.interceptor.InvocationContext;
> @Interceptor
> @NotOK
> public class NotOKInterceptor {
> 	@AroundInvoke
> 	public Object aroundInvoke(InvocationContext ic) throws Exception {
> 		return ic.proceed();
> 	}
> }
> {code}
> Here the stateless service configured with both the interceptors:
> {code:java}
> package it.vige.injection.interceptors;
> import javax.ejb.Stateless;
> import javax.interceptor.Interceptors;
> @Stateless
> public class SimpleService {
> 	@Interceptors({ OKInterceptor.class })
> 	public void ok() {
> 	}
> 	@NotOK
> 	public void notOk() {
> 	}
> }
> {code}
> This service must have two methods, one attached to the simple interceptor and the other attached to the interceptor binding.
> Here the beans.xml configuration:
> {code:java}
> <beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
> 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> 	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
>                            http://xmlns.jcp.org/xml/ns/javaee/beans_2_0.xsd"
> 	version="2.0" bean-discovery-mode="all">
> 	<interceptors>
> 		<class>it.vige.injection.interceptors.OKInterceptor</class>
> 		<class>it.vige.injection.interceptors.NotOKInterceptor</class>
> 	</interceptors>
> </beans>
> {code}
> And in the end the client who call the service:
> {code:java}
> ....
> 	@Inject
> 	private SimpleService simpleService;
> ...
>         // this call works:
>         simpleService.ok();
>         // this call starts a NullPointerException:
>         simpleService.notOk();
> ...
> {code}
> when I try to call the notOk method I get this exception:
> {code:java}
> javax.ejb.EJBException: java.lang.NullPointerException
> at deployment.test.war//it.vige.injection.test.InterceptorsTestCase.testNotOk(InterceptorsTestCase.java:52)
> Caused by: java.lang.NullPointerException
> at deployment.test.war//it.vige.injection.test.InterceptorsTestCase.testNotOk(InterceptorsTestCase.java:52)
> {code}
> The same thing was tested on WildFly 12.0.0.Final and it was ok.
> If on WildFfly 13.0.0.Final I remove the @Stateless annotation from the service it works



--
This message was sent by Atlassian JIRA
(v7.5.0#75005)