code: public String doGetRunners()
      {
  		if (!isServerReady())
  		{
  			addActionError(ConfluenceGreenPepper.SERVER_NOCONFIGURATION);
  			return SUCCESS;
  		}
  		
  		try
          {
          	envTypes = getService().getAllEnvironmentTypes();
              runners = getService().getAllRunners();
              if(!StringUtil.isEmpty(selectedRunnerName))
              {
                  for(Runner runner : runners)
                  {
                      if(runner.getName().equals(selectedRunnerName))
                      {
                          selectedRunner = runner;
                          return SUCCESS;
                      }
                  }
              }
  
              editPropertiesMode = false;
              editClasspathsMode = false;
              selectedRunnerName = NONE_SELECTED;
          }
          catch (GreenPepperServerException e)
          {
              addActionError(e.getId());
          }
          
          return SUCCESS;
      }
docs: <p>doGetRunners.</p>
  
  @return a {@link java.lang.String} object.