this.subsystem = this.getSignet().getSubsystem(this.subsystemId);
try { this.subsystem = this.getSignet().getSubsystem(this.subsystemId); } catch (ObjectNotFoundException onfe) { throw new SignetRuntimeException(onfe); }
  public Subsystem getSubsystem()  throws ObjectNotFoundException  {    if ((this.subsystem == null)        && (this.subsystemId != null)        && (this.getSignet() != null))    {      this.subsystem = this.getSignet().getSubsystem(this.subsystemId);    }        return this.subsystem;  }