class declares multiple JSON fields named primaryKey

Error:

java.lang.IllegalArgumentException: class run.flake.entities.database.users.UsersTable declares multiple JSON fields named primaryKey

Router:

get {
    val server = transaction {
        ServerRow.new {
            name = serverName
            owner = user
            members = SizedCollection(user)
        }
    }

    call.respond(transaction { server.toMap() }) // Here is error
}

.toMap():

fun <ID : Comparable<ID>> Entity<ID>.toMap2(): Map<String, Any?> {
	return this::class.declaredMemberProperties
		.associate {
			it.name to it.apply { isAccessible = true }.call(this)
		}
}

ServerRow

class ServerRow(id: EntityID<UUID>) : UUIDEntity(id) {
	companion object : UUIDEntityClass<ServerRow>(ServersTable)

	var name by ServersTable.name
	var description by ServersTable.description
	var members by UserRow via MembersTable
	var owner by UserRow referencedOn ServersTable.owner
	val groups by GroupRow referrersOn GroupsTable.server
	val roles by RoleRow referrersOn RolesTable.server
	var createdAt by ServersTable.createdAt
}

UserRow:

class UserRow(id: EntityID<UUID>) : UUIDEntity(id) {
	companion object : UUIDEntityClass<UserRow>(UsersTable)

	var lokin by UsersTable.lokin
	var password by UsersTable.password
	var username by UsersTable.username
	var region by UsersTable.locale
	var registeredAt by UsersTable.registeredAt
	var accessLevel by UsersTable.accessLevel
	var isBanned by UsersTable.isBanned
}

[ChA0S-f4me]

I started using jackson instead of GSON, after that it started working normally

[Tapac]

@xiaoliang-cn looks like you are trying to serialize UserTable with gson. Can you show the complete stacktrace to confirm it?