**[Jens Schauder](https://jira.spring.io/secure/ViewProfile.jspa?name=schauder)** opened **[DATAJDBC-183](https://jira.spring.io/browse/DATAJDBC-183?redirect=false)** and commented When a HashMap has collisions, now non null properties of the Map.Entry like HashMap.Node.next get saved. Or actualy the system tries to save them. --- **Referenced from:** pull request https://github.com/spring-projects/spring-data-jdbc/pull/52