protected String nextToken() {
      if (hasMoreTokens()) {
        final String ret = str.substring(beginIdx, endIdx);
        beginIdx = nextIdx;
        nextIdx();
        return ret;
      }
      throw new NoSuchElementException();
    }
@return the number of running processes on the system
geode-core/src/main/java/org/apache/geode/internal/statistics/platform/LinuxProcFsStatistics.java