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Bug
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Resolution: Done
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Critical
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1.1.13.Final, 2.0.1.Final
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None
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None
I have a chain of decorators for a managed bean.
If they are enabled, the container tries to proxy the managed bean, although it uses the default @Dependent scope. When creating the proxy, it ignores the injected constructor with parameters and tries to use the default constructor with no parameters instead. As a result, this fails with an InstantiationException:
Exception in thread "main" org.jboss.weld.exceptions.WeldException: WELD-000033 Could not instantiate client proxy for org.jboss.weld.bean.proxy.DecorationHelper@62fa5ff3 at org.jboss.weld.bean.proxy.DecorationHelper.createProxy(DecorationHelper.java:118) at org.jboss.weld.bean.proxy.DecorationHelper.getNextDelegate(DecorationHelper.java:101) at org.jboss.weld.injection.producer.AbstractDecoratorApplyingInstantiator.getOuterDelegate(AbstractDecoratorApplyingInstantiator.java:75) at org.jboss.weld.injection.producer.SubclassDecoratorApplyingInstantiator.applyDecorators(SubclassDecoratorApplyingInstantiator.java:45) at org.jboss.weld.injection.producer.AbstractDecoratorApplyingInstantiator.newInstance(AbstractDecoratorApplyingInstantiator.java:65) at org.jboss.weld.injection.producer.BasicInjectionTarget.produce(BasicInjectionTarget.java:86) at org.jboss.weld.injection.producer.BeanInjectionTarget.produce(BeanInjectionTarget.java:173) at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:157) at org.jboss.weld.context.unbound.DependentContextImpl.get(DependentContextImpl.java:69) at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:718) at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:774) at org.jboss.weld.injection.FieldInjectionPoint.inject(FieldInjectionPoint.java:92) at org.jboss.weld.util.Beans.injectBoundFields(Beans.java:372) at org.jboss.weld.util.Beans.injectFieldsAndInitializers(Beans.java:381) at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:72) at org.jboss.weld.injection.producer.ResourceInjector.inject(ResourceInjector.java:60) at org.jboss.weld.injection.producer.DefaultInjector$1.proceed(DefaultInjector.java:66) at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:48) at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:64) at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:91) at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:158) at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:103) at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:718) at org.jboss.weld.event.ObserverMethodImpl.getReceiver(ObserverMethodImpl.java:302) at org.jboss.weld.event.ObserverMethodImpl.getReceiverIfExists(ObserverMethodImpl.java:295) at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:259) at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:240) at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:171) at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:167) at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:121) at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:114) at org.jboss.weld.event.EventImpl.fire(EventImpl.java:84) at org.jboss.weld.environment.se.Weld.initialize(Weld.java:153) at org.jboss.weld.environment.se.StartMain.go(StartMain.java:41) at org.jboss.weld.environment.se.StartMain.main(StartMain.java:52) Caused by: java.lang.InstantiationException: com.company.mavenproject1.StandardPrinter$Proxy$_$$_Weld$Proxy$ at java.lang.Class.newInstance0(Class.java:342) at java.lang.Class.newInstance(Class.java:310) at org.jboss.weld.security.NewInstanceAction.run(NewInstanceAction.java:33) at java.security.AccessController.doPrivileged(Native Method) at org.jboss.weld.bean.proxy.DecorationHelper.createProxy(DecorationHelper.java:109) ... 34 more
If I disable the chain of decorators or refactor the managed bean to use a private @Inject field, then the example works as designed.
I assess this as a critical bug because I don't want to rely on private field injection.
I have attached a ZIP file with the sample code.
