docs: public void blockUtilConnected(){
  
          if(getStatus().isConnected()){
              return;
          }
  
          int to = getConnectTimeOut();
          final Object o = new Object();
  
          long now = System.currentTimeMillis();
  
          synchronized(o){
  
              ServiceDirectoryListener listener = new ServiceDirectoryListener(){
  
                  @Override
                  public void notify(ServiceDirectoryEvent event) {
                      synchronized(o){
                          o.notifyAll();
                      }
                  }
  
              };
  
              registerClientChangeListener(listener);
              try{
                  while(to > 0){
                      if (getStatus().isConnected()) {
                          return;
                      }
                      try {
                          o.wait(to);
                      } catch (InterruptedException e) {
                          LOGGER.warn("Block Util Connected interrupted.");
                      }
  
                      to -= (System.currentTimeMillis() - now);
                  }
              }finally{
                  unregisterClientChangeListener(listener);
              }
          }
  
  
      }