[weld-issues] [JBoss JIRA] (WELD-2588) Injection of parametrized type to actual type

Cergey Chaulin (Jira) Sun, 23 Jun 2019 01:41:29 -0700

Title: Message Title

Cergey Chaulin updated an issue

Change By:	Cergey Chaulin

When starting container with the below classes (trying to inject implementation of GenericFoo (FooImpl) to field foo in Bar)
DeploymentException exception is thrown.
{code:java}
  interface GenericFoo<T extends Comparable<T>> {
        T someMethod();
    }

     class FooImpl<T extends Comparable<T>> implements GenericFoo<T> {
        @Override
        public T someMethod() {
            return null;
        }
    }

     class Bar {
        @Inject
        private GenericFoo<Long> foo;
    }

{code}

CDI Spec 5.2.4. states that a parameterized bean type is considered assignable to a parameterized required type if they have
identical raw type and for each parameter: +the required type parameter is an actual type, the bean type parameter is a type variable and the actual type is assignable to the upper bound, if any, of the type variable.+

From my understanding, the injection should work.

Stacktrace:

{code:java}
at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:378)
at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:290)
at org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:143)
at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:164)
at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:526)
at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:64)
at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:62)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:62)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:55)
at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
{code}

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[weld-issues] [JBoss JIRA] (WELD-2588) Injection of parametrized type to actual type

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