[jboss-jira] [JBoss JIRA] (WFLY-8875) Improve exception when injecting EJB Local Interface Proxy loaded from two different classloaders

[Brad Maxwell (JIRA)]

Brad Maxwell created WFLY-8875:
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             Summary: Improve exception when injecting EJB Local Interface Proxy loaded from two different classloaders
                 Key: WFLY-8875
                 URL: https://issues.jboss.org/browse/WFLY-8875
             Project: WildFly
          Issue Type: Enhancement
          Components: EE, EJB
    Affects Versions: 11.0.0.Alpha1
            Reporter: Brad Maxwell
            Priority: Minor


If an EJB client tries to use @EJB to inject an EJB Local Proxy and the Local interface is in two different classloaders/modules/sub-deployments, it throws the error below.  It would be helpful for the user to identify the issue if the exception indicated multiple classloaders or class HelloWorld is loaded from multiple modules or class cast exception.

{code}
Caused by: java.lang.IllegalArgumentException: Can not set example.api.HelloWorld field example.client.ClientSingleton.helloWorld to example.api.HelloWorld$$$view1
	at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
	at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
	at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81)
	at java.lang.reflect.Field.set(Field.java:764)
	at org.jboss.as.ee.component.ManagedReferenceFieldInjectionInterceptorFactory$ManagedReferenceFieldInjectionInterceptor.processInvocation(ManagedReferenceFieldInjectionInterceptorFactory.java:106)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:240)
	at org.jboss.as.ee.component.AroundConstructInterceptorFactory$1.processInvocation(AroundConstructInterceptorFactory.java:28)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:240)
	at org.jboss.as.weld.injection.WeldInterceptorInjectionInterceptor.processInvocation(WeldInterceptorInjectionInterceptor.java:56)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:240)
	at org.jboss.as.weld.interceptors.Jsr299BindingsCreateInterceptor.processInvocation(Jsr299BindingsCreateInterceptor.java:100)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:240)
	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:240)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:275)
	... 26 more
{code}



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