IDEA error "Managed bean must be a concrete class, or is annotated with @Decorator"

Question

In my Java EE project I have a few abstract classes. IntelliJ IDEA underlines them red and tells me:

Managed bean must be a concrete class, or is annotated with @Decorator

A top-level Java class is a managed bean if it is defined to be a managed bean by any other Java EE specification, or if it meets all of the following conditions:

It is not a non-static inner class.

It is a concrete class, or is annotated @Decorator.

It is not annotated with an EJB component-defining annotation or declared as an EJB bean class in ejb-jar.xml.

It has an appropriate constructor—either:

the class has a constructor with no parameters, or

the class declares a constructor annotated @Inject.

I just want to use abstract classes, without any annotation. Although IntelliJ shows me that this is an error my JBoss server doesn't complain about it.

Any explanation?

score 6 · Answer 1 · answered Aug 08 '18 at 20:53

6

My guess is this is the Managed Bean Inconsistency errors inspection in Settings > Editor > Inspections > CDI (Contexts and Dependency Injection). Its severity is Error, so it will be underlined with a red squiggly line.

It seems you don't really care for this inspection, so just deselect it and save your changes.

answered Aug 08 '18 at 20:53

Kosi

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That solves it! But what if one doesn't want to ignore this problem but fix it? How to solve this issue about Managed Beans? – Prasannjeet Singh Mar 20 '22 at 00:31

IDEA error "Managed bean must be a concrete class, or is annotated with @Decorator"

1 Answers1