https://docs.spring.io/spring-data/neo4j/reference/8.0-SNAPSHOT/api/java/org/springframework/data/neo4j/core/mapping/UnknownEntityException.html
UnknownEntityException (Spring Data Neo4j 8.0.6-SNAPSHOT API)
declaration: package: org.springframework.data.neo4j.core.mapping, class: UnknownEntityException
spring datasnapshotapi