I have a class A with a relation to a BEmbeddable. The BEmbeddable have a @PreUpdate method.
When creating the entity A with BEmbeddable null, then save A, it tries to call the @PreUpdate on B which is null.
Basically the problem is that we try to call the method PreUpdate on a null element of B.
Stack trace of nullpointer in Debug:
Line 62 is `invoke0(method, obj, args)` with method = @PreUpdate method and obj is null.
Maybe a null check is missing in `performCallback:35, EmbeddableCallback org.hibernate.jpa.event.internal`
Printed stack trace: