Revisit covariant return type for various implementations --------------------------------------------------------- Key: ISPN-3675 URL: https://issues.jboss.org/browse/ISPN-3675 Project: Infinispan Issue Type: Enhancement Components: Core Affects Versions: 6.0.0.CR1 Reporter: William Burns We use interfaces all over the place, which is great. However a lot of implementations currently only define their return types to be that of the type defined in the interface. However we can change the implementation return type of the method to be covariant which allows for direct users of the implementation to use the subclass if desired. This especially came up in the discussion here: https://github.com/infinispan/infinispan/pull/2177/files#r7375883 as we could remove redundant casts which would provide cleaner code.