**[umut erturk](https://jira.spring.io/secure/ViewProfile.jspa?name=umut.erturk)** opened **[DATAJDBC-501](https://jira.spring.io/browse/DATAJDBC-501?redirect=false)** and commented Kotlin enum as the query param is not working. when this [line runs](https://github.com/tirbison/spring-data-jdbc-kotlin/blob/eb3983d73e3fd5c953d5b7c899535977c46ac6d4/src/main/kotlin/com/example/demo/domain/model/GameRepository.kt#L11) I get an exception message: Caused by: org.h2.jdbc.JdbcSQLDataException: Hexadecimal string with odd number of characters: "RUNNING"; SQL statement... You can reproduce the case from given branch in the Reference URL --- **Reference URL:** https://github.com/tirbison/spring-data-jdbc-kotlin/tree/bug/reproduce/enum-query-param