code: public void setPercentiles( String percentiles )
      {
          if( percentiles == null ) percentiles = "";
          
          String[] percList = percentiles.split(",");
          double[] percs = new double[percList.length];
          
          for( int i = 0; i < percList.length; i++ )
              percs[i] = Double.parseDouble( percList[i] );
          
          m_percentiles = percs;
          
          rebuildJmx();
      }
docs: Sets the percentiles that should be measured.  This is a
  comma-separated list of percentiles, e.g. "95, 99, 99.9".
  
  @param percentiles Comma-separated list of percentiles.