[jboss-jira] [JBoss JIRA] (WFLY-10754) NullPointerException using Stateless with configured interceptors
Luca Stancapiano (JIRA)
issues at jboss.org
Tue Jul 31 10:48:00 EDT 2018
[ https://issues.jboss.org/browse/WFLY-10754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612767#comment-13612767 ]
Luca Stancapiano commented on WFLY-10754:
-----------------------------------------
the test works. I started also the other test cases and all tests continue to work, so for me it's ok. Only I renamed the CombinedInterceptorsOnEJBBeanTest to CombinedInterceptorsOnEJBBeanTestCase as for the other test cases. You can find the update in [my branch|https://github.com/flashboss/wildfly/tree/wfly10754]
> 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 12.0.0.Final and newer
> Reporter: Luca Stancapiano
> Assignee: Matej Novotny
> Priority: Minor
>
> 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 11.0.0.Final and it was ok.
> If on WildFfly 13.0.0.Final I remove the @Stateless annotation from the service it works
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