Problems mapping UUID in JPA/hibernate

Question

According to the documentation, hibernate 3.6 should have support for the java.util.UUID type. But when I map it like:

@Id protected UUID uuid;

Answer 1

Extending Mike Lively's answer with a code sample & referring to Oracle too.

I had this problem with the OracleDialect (Oracle10gDialect). Adding an annotation @Type to the UUID field fixed it for me.

@Id
@Type(type="uuid-char")
private UUID id;

Note: also used a TwoWayStringBridge on this field, using the @FieldBridge annotation.

Note: type="uuid-binary" did not work; got the same, unknown type error.