public int hashCode(){
  int myhash=37 + policyIdentifier.hashCode();
  myhash=37 * myhash + policyQualifiers.hashCode();
  return myhash;
}

public int hashCode ( ) { int myhash = 37 + policyIdentifier . hashCode ( ) ; myhash = 37 * myhash + policyQualifiers . hashCode ( ) ; return myhash ; }
returns the hash code for this policyinformation .
