* instead on placeholder. */
final ConstraintPHInfo cphi;
if (rsc.isConstraintPlaceholder()) {
cphi = (ConstraintPHInfo) rsc;
final ServiceInfo si = cphi.nextInSequence(withRsc, true);
if (si != null) {
vRsc = getVertex(si);
}
} else {
cphi = (ConstraintPHInfo) withRsc;