public void addCoupling(final Coupling<?> coupling){
  try {
    manager.addCoupling(coupling);
  }
 catch (  UmatchedAttributesException e) {
    e.printStackTrace();
  }
}

public void addCoupling ( final Coupling < ? > coupling ) { try { manager . addCoupling ( coupling ) ; } catch ( UmatchedAttributesException e ) { e . printStackTrace ( ) ; } }
adds a coupling to the couplingmanager .
