[cdi-dev] [JBoss JIRA] Closed: (CDI-130) interceptor that return void, unclear in 1.0 specification, needs clarification in 1.1

[Marius Bogoevici (JIRA)]

     [ https://issues.jboss.org/browse/CDI-130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marius Bogoevici closed CDI-130.
--------------------------------

    Resolution: Won't Fix


> interceptor that return void, unclear in 1.0 specification, needs clarification in 1.1
> --------------------------------------------------------------------------------------
>
>                 Key: CDI-130
>                 URL: https://issues.jboss.org/browse/CDI-130
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>          Components: Interceptors
>            Reporter: Richard Hightower
>            Assignee: Marius Bogoevici
>            Priority: Minor
>             Fix For: 1.1 (Proposed)
>
>
> The specification has an example in 9.5.1 that returns a void. AspectJ/AspectWerks annotation allow this (prior art).
> Can interceptors return void? The specification seem unclear on this. Well, it shows an example but there is no further verbiage.
> I get three different behaviors for this interceptor:
> {code}
> package org.cdi.advocacy.security;
> import javax.inject.Inject;
> import javax.interceptor.AroundInvoke;
> import javax.interceptor.Interceptor;
> import javax.interceptor.InvocationContext;
> /**
>  * @author Richard Hightower
>  */
> @Secure @Interceptor
> public class SecurityAdvice {      
>         @Inject
>         private SecurityService securityManager;
>         @AroundInvoke
>         public void checkSecurity(InvocationContext joinPoint) throws Exception {     
>             System.out.println("In SecurityAdvice");
>             /* If the user is not logged in, don't let them use this method */
>             if(!securityManager.isLoggedIn()){
>                 throw new SecurityViolationException();
>             }
>             /* Get the name of the method being invoked. */
>             String operationName = joinPoint.getMethod().getName();
>             /* Get the name of the object being invoked. */
>             String objectName = joinPoint.getTarget().getClass().getName();
>            /*
>             * Invoke the method or next Interceptor in the list,
>             * if the current user is allowed.
>             */
>             if (!securityManager.isAllowed(objectName, operationName)){
>                 throw new SecurityViolationException();
>             }
>             joinPoint.proceed();
>         }
> }
> {code}
> Weld does not recognize it because it returns void. It fails silently.
> Candi recognizes it and uses it.
> OpenWebBeans throws an exception as follows:
> {code}
> org.apache.webbeans.exception.WebBeansConfigurationException: @AroundInvoke annotated method : checkSecurity in class : org.cdi.advocacy.security.SecurityAdvice must return Object type
> at org.apache.webbeans.util.WebBeansUtil.checkAroundInvokeAnnotationCriterias(WebBeansUtil.java:1094)
> at org.apache.webbeans.util.WebBeansUtil.configureInterceptorMethods(WebBeansUtil.java:1241)
> at org.apache.webbeans.intercept.WebBeansInterceptorConfig.addMethodInterceptors(WebBeansInterceptorConfig.java:349)
> at org.apache.webbeans.intercept.WebBeansInterceptorConfig.configure(WebBeansInterceptorConfig.java:250)
> at org.apache.webbeans.config.DefinitionUtil.defineBeanInterceptorStack(DefinitionUtil.java:1058)
> at org.apache.webbeans.config.BeansDeployer.validate(BeansDeployer.java:365)
> at org.apache.webbeans.config.BeansDeployer.validateInjectionPoints(BeansDeployer.java:326)
> at org.apache.webbeans.config.BeansDeployer.deploy(BeansDeployer.java:179)
> at org.apache.webbeans.lifecycle.AbstractLifeCycle.startApplication(AbstractLifeCycle.java:123)
> at org.cdiadvocate.beancontainer.OpenWebBeansBeanContainer.doStart(OpenWebBeansBeanContainer.java:26)
> at org.cdiadvocate.beancontainer.AbstractBeanContainer.start(AbstractBeanContainer.java:111)
> at org.cdi.advocacy.AtmMain.<clinit>(AtmMain.java:25)
> Exception in thread "main" java.lang.ExceptionInInitializerError
> Caused by: org.cdiadvocate.beancontainer.BeanContainerInitializationException: Unable to start BeanContainer : @AroundInvoke annotated method : checkSecurity in class : org.cdi.advocacy.security.SecurityAdvice must return Object type
> at org.cdiadvocate.beancontainer.AbstractBeanContainer.start(AbstractBeanContainer.java:113)
> at org.cdi.advocacy.AtmMain.<clinit>(AtmMain.java:25)
> Caused by: org.apache.webbeans.exception.WebBeansConfigurationException: @AroundInvoke annotated method : checkSecurity in class : org.cdi.advocacy.security.SecurityAdvice must return Object type
> at org.apache.webbeans.util.WebBeansUtil.checkAroundInvokeAnnotationCriterias(WebBeansUtil.java:1094)
> at org.apache.webbeans.util.WebBeansUtil.configureInterceptorMethods(WebBeansUtil.java:1241)
> at org.apache.webbeans.intercept.WebBeansInterceptorConfig.addMethodInterceptors(WebBeansInterceptorConfig.java:349)
> at org.apache.webbeans.intercept.WebBeansInterceptorConfig.configure(WebBeansInterceptorConfig.java:250)
> at org.apache.webbeans.config.DefinitionUtil.defineBeanInterceptorStack(DefinitionUtil.java:1058)
> at org.apache.webbeans.config.BeansDeployer.validate(BeansDeployer.java:365)
> at org.apache.webbeans.config.BeansDeployer.validateInjectionPoints(BeansDeployer.java:326)
> at org.apache.webbeans.config.BeansDeployer.deploy(BeansDeployer.java:179)
> at org.apache.webbeans.lifecycle.AbstractLifeCycle.startApplication(AbstractLifeCycle.java:123)
> at org.cdiadvocate.beancontainer.OpenWebBeansBeanContainer.doStart(OpenWebBeansBeanContainer.java:26)
> at org.cdiadvocate.beancontainer.AbstractBeanContainer.start(AbstractBeanContainer.java:111)
> ... 1 more
> {code}

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