code: public final Job getJob(String projectId, String region, String jobId) {
  
      GetJobRequest request =
          GetJobRequest.newBuilder()
              .setProjectId(projectId)
              .setRegion(region)
              .setJobId(jobId)
              .build();
      return getJob(request);
    }
docs: Gets the resource representation for a job in a project.
  
  <p>Sample code:
  
  <pre><code>
  try (JobControllerClient jobControllerClient = JobControllerClient.create()) {
  String projectId = "";
  String region = "";
  String jobId = "";
  Job response = jobControllerClient.getJob(projectId, region, jobId);
  }
  </code></pre>
  
  @param projectId Required. The ID of the Google Cloud Platform project that the job belongs to.
  @param region Required. The Cloud Dataproc region in which to handle the request.
  @param jobId Required. The job ID.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails