Loops in you generic usages?
Romain Manni-Bucau
@rmannibucau | Blog | Old Blog | Github | LinkedIn
2017-11-27 11:29 GMT+01:00 Matthew Broadhead <matthew.broadh...@nbmlaw.co.uk>:
> starts up ok but then on page load i get
>
> |java.lang.StackOverflowError at
> org.apache.webbeans.util.GenericsUtil.isAssignableFrom(GenericsUtil.java:172)
> at
> org.apache.webbeans.util.GenericsUtil.isAssignableFrom(GenericsUtil.java:146)
> at
> org.apache.webbeans.util.GenericsUtil.isAssignableFrom(GenericsUtil.java:117)
> at
> org.apache.webbeans.util.GenericsUtil.satisfiesDependency(GenericsUtil.java:61)
> at
> org.apache.webbeans.container.BeanManagerImpl.isBeanTypeAssignableToGivenType(BeanManagerImpl.java:923)
> at
> org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:742)
> at
> org.apache.webbeans.portable.ProducerMethodProducer.produce(ProducerMethodProducer.java:84)
> at
> org.apache.webbeans.portable.AbstractProducer.produce(AbstractProducer.java:172)
> at
> org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:122)
> at
> org.apache.webbeans.component.ProducerMethodBean.create(ProducerMethodBean.java:95)
> at
> org.apache.webbeans.context.DependentContext.getInstance(DependentContext.java:68)
> at org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:125)
> at
> org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:799)
> at
> org.apache.webbeans.container.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:659)
> at
> org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:103)
> at
> org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:220)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:206)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:196)
> at
> org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:126)
> at org.apache.webbeans.component.ManagedBean.create(ManagedBean.java:67) at
> org.apache.webbeans.context.creational.BeanInstanceBag.create(BeanInstanceBag.java:76)
> at
> org.apache.webbeans.context.AbstractContext.getInstance(AbstractContext.java:159)
> at org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:125)
> at
> org.apache.webbeans.intercept.NormalScopedBeanInterceptorHandler.getContextualInstance(NormalScopedBeanInterceptorHandler.java:101)
> at
> org.apache.webbeans.intercept.RequestScopedBeanInterceptorHandler.getContextualInstance(RequestScopedBeanInterceptorHandler.java:76)
> at
> org.apache.webbeans.intercept.NormalScopedBeanInterceptorHandler.get(NormalScopedBeanInterceptorHandler.java:71)
> at
> org.apache.webbeans.proxy.NormalScopeProxyFactory.unwrapInstance(NormalScopeProxyFactory.java:90)
> at
> org.apache.webbeans.inject.InjectableMethod.doInjection(InjectableMethod.java:91)
> at
> org.apache.webbeans.portable.ProducerMethodProducer.produce(ProducerMethodProducer.java:89)
> at
> org.apache.webbeans.portable.AbstractProducer.produce(AbstractProducer.java:172)
> at
> org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:122)
> at
> org.apache.webbeans.component.ProducerMethodBean.create(ProducerMethodBean.java:95)
> at
> org.apache.webbeans.context.DependentContext.getInstance(DependentContext.java:68)
> at org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:125)
> at
> org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:799)
> at
> org.apache.webbeans.container.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:659)
> at
> org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:103)
> at
> org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:220)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:206)
> at
> org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:196)
> at
> org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:126)|
>
>
>
>
> On 27/11/2017 11:09, Romain Manni-Bucau wrote:
>>
>> Hi
>>
>> it looks accurate, a normal scoped instance - request scoped - proxies
>> a not null instance so you can't return null. Using a @RequestScoped
>> producer class (the enclosing one) and @Dependent producer can work
>> too if you inject this context in request scoped instances only.
>>
>> Romain Manni-Bucau
>> @rmannibucau | Blog | Old Blog | Github | LinkedIn
>>
>>
>> 2017-11-27 11:02 GMT+01:00 Matthew Broadhead
>> <matthew.broadh...@nbmlaw.co.uk>:
>>>
>>> if @Produces can produce null e.g.
>>>
>>> @Produces
>>> @Default
>>> @RequestScoped
>>> public KeycloakSecurityContext keycloakSecurityContext() {
>>> if (httpServletRequest.getUserPrincipal() instanceof
>>> KeycloakPrincipal)
>>> {
>>> KeycloakPrincipal<KeycloakSecurityContext> keycloakPrincipal =
>>> (KeycloakPrincipal<KeycloakSecurityContext>)
>>> httpServletRequest.getUserPrincipal();
>>> return keycloakPrincipal.getKeycloakSecurityContext();
>>> }
>>> return null;
>>> }
>>>
>>> then i get
>>> Caused by:
>>> javax.enterprise.inject.IllegalProductException - WebBeans producer :
>>> keycloakSecurityContext return type in the component implementation class
>>> :
>>> uk.me.kissy.external.producers.SecurityProducer scope type must be
>>> @Dependent to create null instance
>>> at
>>>
>>> org.apache.webbeans.util.WebBeansUtil.checkNullInstance(WebBeansUtil.java:902)
>>>
>>> I can't add @Dependent to the KeycloakSecurityContext class but if I add
>>> it
>>> to keycloakSecurityContext() i get
>>> org.apache.openejb.cdi.OpenEJBLifecycle.startApplication CDI Beans module
>>> deployment failed
>>> org.apache.webbeans.exception.WebBeansConfigurationException: Annotated
>>> producer method : public org.keycloak.KeycloakSecurityContext
>>> uk.me.kissy.external.producers.SecurityProducer.token()must declare
>>> default
>>> @Scope annotation
>
>
