code: public static void storeLogs(String sourceLogFileName, String destLogFileName) throws Exception {
          // assumes eventmanager is running
          // store logs
          String tmpdir = System.getProperty("java.io.tmpdir");
          if (tmpdir == null || tmpdir == "null") {
              tmpdir = "/tmp";
          }
      	File tmpLogFile = new File(tmpdir + File.separator + sourceLogFileName);
      	File destFile = new File(current_log_dir + File.separator + destLogFileName);
      	
          Files.copy(tmpLogFile, destFile);
      }
docs: Stores the specified log for this test
  @throws Exception