Hibernate 6.3 creates bytea column type instead of geometry

I basically encounter the same problem described in this post: hibernate-spatial-4.0 creates bytea column type instead of geometry

According to the hibernate docs the type mapping of a jts Geometry object should be done automatically without any additional annotations required. However, i end up with the bytea type in my postgis database: Database result

I use Spring boot 3.2, hibernate 6.3.1.Final and jts 1.19. My model is defined as:

import org.locationtech.jts.geom.Geometry; // ... @NoArgsConstructor @AllArgsConstructor @Data @Entity @Builder public class DwdPoiStation { /** the internal database id. */ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; // ... @Column private Geometry geom; /** the height. */ @Column private float height; } 

And i have set the hibernate dialect accordingly:

spring.jpa.database-platform: org.hibernate.dialect.PostgreSQLDialect spring.jpa.hibernate.ddl-auto: update spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults: false spring.jpa.properties.hibernate.default_schema: public 

For the database i use a kartoza/postgis:16-3.4 docker image. The PostgreSQL jdbc driver version is 42.7.1.

What am i missing?

I tried one of the solution provided in the other post (https://stackoverflow.com/a/60469891/10209352), checked my dependencies and used the latest jts library. I also searched online for other solutions, but were unable to even find a related problem using the hibernate 6.x version. Since the official documentation states that additional annotations are not required, i expect that i do not have to use properties like "columnDefinition" or annotations like @Type to make this work. It rather seems to be a version missmatch problem.