code: @Override
      public void printColumns(Collection<String> list) {
          String[] newList = new String[list.size()];
          list.toArray(newList);
          try {
              console.pushToConsole(org.jboss.jreadline.util.Parser.formatCompletions(newList, console.getTerminalHeight(),
                      console.getTerminalWidth()));
          } catch (IOException e) {
              e.printStackTrace();
          }
      }
docs: /*
  (non-Javadoc)
  
  @see org.restcomm.ss7.management.console.Console#printColumns(java.util. Collection)