Spring Boot : Error creating bean with name 'jpaMappingContext': java.lang.NullPointerException

Question

My combination of is Spring Boot + Spring Data Jpa + Multiple Databases. I am getting following NullPointer exception when starting the application. Feels like SPring Data with

Answer 1

Many thanks to Vishal for the idea. In my case it was generic-less implementation of javax.persistence.AttributeConverter that provoked this exception. Changing class MapConverter implements AttributeConverter { ... } to class MapConverter implements AttributeConverter, String> { ... } really helped.