Selecting a model subset (via fetches) leads to NPE when @EntityViewInheritance is involved

[david-kubecka]

I don't have a simple reproducer for this but the situation is roughly following:

• EV A contains (possibly deeply nested) a collection of EV B which has @EntityViewInheritance defined
• I create an EntityViewSetting with fetches which don't contain the Bs collection
• I apply the setting to the CB and fetch resultList

Expected: The query executes ok.

Actual: NPE in https://github.com/Blazebit/blaze-persistence/blob/08793f4ab72cd57762bb6d222ad1fa9421f23e22/entity-view/impl/src/main/java/com/blazebit/persistence/view/impl/objectbuilder/transformator/TupleTransformatorFactory.java#L135

Details: The classMappingIndex not present in the tuple corresponds to a "class type" select expression related to the Bs collection. That's why I think it's related to @EntityViewInheritance

[david-kubecka]

Update: There's a crude fix/workaround https://github.com/Blazebit/blaze-persistence/pull/1723