twill-yarn/src/main/hadoop20/org/apache/twill/internal/yarn/Hadoop20YarnAppClient.java [174:208]:
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    return createLauncher(twillSpec, schedulerQueue);
  }

  @Override
  public ProcessController<YarnApplicationReport> createProcessController(ApplicationId appId) {
    return new ProcessControllerImpl(yarnClient, appId);
  }

  @Override
  public List<NodeReport> getNodeReports() throws Exception {
    return this.yarnClient.getNodeReports();
  }

  @Override
  protected void startUp() throws Exception {
    yarnClient.start();
  }

  @Override
  protected void shutDown() throws Exception {
    yarnClient.stop();
  }

  private static final class ProcessControllerImpl implements ProcessController<YarnApplicationReport> {
    private final YarnClient yarnClient;
    private final ApplicationId appId;

    public ProcessControllerImpl(YarnClient yarnClient, ApplicationId appId) {
      this.yarnClient = yarnClient;
      this.appId = appId;
    }

    @Override
    public YarnApplicationReport getReport() {
      try {
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twill-yarn/src/main/hadoop21/org/apache/twill/internal/yarn/Hadoop21YarnAppClient.java [154:188]:
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    return createLauncher(twillSpec, schedulerQueue);
  }

  @Override
  public ProcessController<YarnApplicationReport> createProcessController(ApplicationId appId) {
    return new ProcessControllerImpl(yarnClient, appId);
  }

  @Override
  public List<NodeReport> getNodeReports() throws Exception {
    return this.yarnClient.getNodeReports();
  }

  @Override
  protected void startUp() throws Exception {
    yarnClient.start();
  }

  @Override
  protected void shutDown() throws Exception {
    yarnClient.stop();
  }

  private static final class ProcessControllerImpl implements ProcessController<YarnApplicationReport> {
    private final YarnClient yarnClient;
    private final ApplicationId appId;

    public ProcessControllerImpl(YarnClient yarnClient, ApplicationId appId) {
      this.yarnClient = yarnClient;
      this.appId = appId;
    }

    @Override
    public YarnApplicationReport getReport() {
      try {
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