If a concrete parameterized class extends a generic class, the methods that are inherited from the superclass, but not overridden have duplicate interceptors.

e.g.

class Parent<T>
{
@SomeBinding
void doStuff(T param);
}

class Child extends Parent<String>
{

}

This is due to getWeldMethods returning bridge methods and InterceptionModel not being able to figure out the difference between bridge methods and originals - possibly an unfixed case of WELD-568.