Christian Beikov, this bug is due to infinite loop in:
https://github.com/hibernate/hibernate-orm/blob/5.2.14/hibernate-core/src/main/java/org/hibernate/persister/entity/AbstractPropertyMapping.java#L283
(Second infinite loop is in: https://github.com/hibernate/hibernate-orm/blob/5.2.14/hibernate-core/src/main/java/org/hibernate/persister/entity/AbstractPropertyMapping.java#L307)
It can be reproduced when we have using @Inheritance in Entities.