code: private JobID parseJobId(String jobIdString) throws CliArgsException {
  		if (jobIdString == null) {
  			throw new CliArgsException("Missing JobId");
  		}
  
  		final JobID jobId;
  		try {
  			jobId = JobID.fromHexString(jobIdString);
  		} catch (IllegalArgumentException e) {
  			throw new CliArgsException(e.getMessage());
  		}
  		return jobId;
  	}
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