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  1. Weld
  2. WELD-1571

Proxy creation fails when a superclass does not have a no-arg constructor

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Details

    • Bug
    • Resolution: Done
    • Major
    • 2.1.2.Final, 2.2.0.Alpha1
    • 2.1.1.Final
    • Proxies
    • None

    Description

      When injecting an @ApplicationScoped bean, which extends a class that does not have a no-arg constructor, the following NPE occurs:

      Caused by: java.lang.NullPointerException
	at org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:214) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:727) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:789) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.FieldInjectionPoint.inject(FieldInjectionPoint.java:92) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.util.Beans.injectBoundFields(Beans.java:358) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.util.Beans.injectFieldsAndInitializers(Beans.java:369) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:72) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.producer.ResourceInjector.inject(ResourceInjector.java:60) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.producer.DefaultInjector$1.proceed(DefaultInjector.java:66) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:48) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:64) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:90) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:150) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:94) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:98) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:78) [weld-core-impl-2.1.1.Final.jar:2013-12-03 09:59]
	at nl.topicus.digdag.rest.integration.RemoteClientBuilder$Proxy$_$$_WeldClientProxy.createTopicusClient(Unknown Source) [classes:]
	at nl.topicus.digdag.rest.RemoteAuthenticationRESTService.getRemoteAuthentication(RemoteAuthenticationRESTService.java:223) [classes:]

      Debugging the code in ClientProxyProvider.getClientProxy reveals that this caused by the following problem (in Proxies.getUnproxyableTypesExceptionInt):

      org.jboss.weld.exceptions.UnproxyableResolutionException: WELD-001435: Normal scoped bean class org.openid4java.consumer.AbstractNonceVerifier is not proxyable because it has no no-args constructor - Managed Bean [class nl.topicus.digdag.rest.integration.CachedNonceVerifier] with qualifiers [@Any @Default].

      CachedNonceVerifier extends AbstractNonceVerifier. CachedNonceVerifier does have a no-arg constructor, AbstractNonceVerifier does not, but I do not see why it would need it as CachedNonceVerifier is the type that is proxied.

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          is duplicated by

          Bug - A problem that impairs or prevents the functions of the product. WELD-1708 (1.1) Proxy creation fails when a superclass does not have a no-arg constructor

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

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              mbriskar_jira Matej Briskar (Inactive)
              papegaaij Emond Papegaaij
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              Dates

                Created:
                Updated:
                Resolved: