How to change name of the foreign key used to map an association in Grails
class AreaServer {


String serverId
...
...
static hasMany = [ serverProtocol : ServerProtocol ]

static mapping = {
        serverProtocol lazy:false
        id name: 'serverId', generator: 'assigned'
        serverProtocol column: 'server_serverId'
}

class ServerProtocol {

long dbId
....
....
static belongsTo = [ areaServer : AreaServer ]

static mapping = {

     id name: 'dbId'
     version false
}