NPE when ordering by alias referring to function expression in PaginatedCriteriaBuilder through SUBSELECT fetching #1803
Description
Description
An expression like COALESCE(FUNCTION('CAST_INTEGER',externalPositionId), id.deliveryNotePositionId) results in an NPE during ExpressionUtils.isNullable because rootTypes are null.
Expected behavior
Actual behavior
Steps to reproduce
Environment
Version:
JPA-Provider:
DBMS:
Application Server: