import net.mograsim.machine.Machine;
import net.mograsim.machine.MachineDefinition;
import net.mograsim.machine.MachineRegistry;
import net.mograsim.machine.Machine;
import net.mograsim.machine.MachineDefinition;
import net.mograsim.machine.MachineRegistry;
{
machineDefinition = machineId.map(MachineRegistry::getMachine);
machineDefinition.ifPresent(md -> setActiveMachine(md.createNew()));
{
machineDefinition = machineId.map(MachineRegistry::getMachine);
machineDefinition.ifPresent(md -> setActiveMachine(md.createNew()));