if (configuration.getPerformanceTests().isEmpty()) { log.info("No performance tests defined in the configuration file"); }
   protected void doCharts() throws Exception   {      // one chart (image) per performance test      // only chart the performance tests from the current configuration file; the database may      // contain much more that those, but it MUST contains the ones from the config file, they      // just ran      for(Iterator i = configuration.getPerformanceTests().iterator(); i.hasNext(); )      {         String testName = ((PerformanceTest)i.next()).getName();         PerformanceTest pt = pm.getPerformanceTest(testName);         if (pt == null)         {            throw new Exception("The performance test '" + testName + "' found in configuration " +                                "file but not in the database");         }         chartPerformanceTest(pt);      }   }