Program: 63922
Project: 63922
Buggy source:
@Override public void accept(Event<GetSSHFingerprintsRequest> getSSHFingerprintsRequestEvent){
  LOGGER.info("String_Node_Str",getSSHFingerprintsRequestEvent);
  GetSSHFingerprintsRequest fingerprintsRequest=getSSHFingerprintsRequestEvent.getData();
  try {
    CloudContext cloudContext=fingerprintsRequest.getCloudContext();
    CloudInstance cloudInstance=fingerprintsRequest.getCloudInstance();
    CloudConnector connector=cloudPlatformConnectors.get(cloudContext.getPlatformVariant());
    AuthenticatedContext ac=connector.authentication().authenticate(cloudContext,fingerprintsRequest.getCloudCredential());
    GetSSHFingerprintsResult fingerprintsResult;
    try {
      String initialConsoleOutput=connector.instances().getConsoleOutput(ac,cloudInstance);
      InstanceConsoleOutputResult consoleOutputResult=new InstanceConsoleOutputResult(cloudContext,cloudInstance,initialConsoleOutput);
      PollTask<InstanceConsoleOutputResult> outputPollerTask=statusCheckFactory.newPollConsoleOutputTask(connector.instances(),ac,cloudInstance);
      if (!outputPollerTask.completed(consoleOutputResult)) {
        consoleOutputResult=syncPollingScheduler.schedule(outputPollerTask);
      }
      Set<String> sshFingerprints=FingerprintParserUtil.parseFingerprints(consoleOutputResult.getConsoleOutput());
      if (sshFingerprints.isEmpty()) {
        fingerprintsResult=new GetSSHFingerprintsResult("String_Node_Str",null,fingerprintsRequest);
      }
 else {
        fingerprintsResult=new GetSSHFingerprintsResult(fingerprintsRequest,sshFingerprints);
      }
    }
 catch (    CloudOperationNotSupportedException e) {
      fingerprintsResult=new GetSSHFingerprintsResult(fingerprintsRequest,new HashSet<String>());
    }
    fingerprintsRequest.getResult().onNext(fingerprintsResult);
    eventBus.notify(fingerprintsResult.selector(),new Event(getSSHFingerprintsRequestEvent.getHeaders(),fingerprintsResult));
    LOGGER.info("String_Node_Str");
  }
 catch (  Exception e) {
    GetSSHFingerprintsResult failure=new GetSSHFingerprintsResult("String_Node_Str",e,fingerprintsRequest);
    fingerprintsRequest.getResult().onNext(failure);
    eventBus.notify(failure.selector(),new Event(getSSHFingerprintsRequestEvent.getHeaders(),failure));
  }
}

Fixed version (ground truth):
@Override public void accept(Event<GetSSHFingerprintsRequest> getSSHFingerprintsRequestEvent){
  LOGGER.info("String_Node_Str",getSSHFingerprintsRequestEvent);
  GetSSHFingerprintsRequest fingerprintsRequest=getSSHFingerprintsRequestEvent.getData();
  try {
    CloudContext cloudContext=fingerprintsRequest.getCloudContext();
    CloudInstance cloudInstance=fingerprintsRequest.getCloudInstance();
    CloudConnector connector=cloudPlatformConnectors.get(cloudContext.getPlatformVariant());
    AuthenticatedContext ac=connector.authentication().authenticate(cloudContext,fingerprintsRequest.getCloudCredential());
    GetSSHFingerprintsResult fingerprintsResult;
    try {
      String initialConsoleOutput=connector.instances().getConsoleOutput(ac,cloudInstance);
      InstanceConsoleOutputResult consoleOutputResult=new InstanceConsoleOutputResult(cloudContext,cloudInstance,initialConsoleOutput);
      PollTask<InstanceConsoleOutputResult> outputPollerTask=statusCheckFactory.newPollConsoleOutputTask(connector.instances(),ac,cloudInstance);
      if (!outputPollerTask.completed(consoleOutputResult)) {
        consoleOutputResult=syncPollingScheduler.schedule(outputPollerTask);
      }
      Set<String> sshFingerprints=FingerprintParserUtil.parseFingerprints(consoleOutputResult.getConsoleOutput());
      if (sshFingerprints.isEmpty()) {
        throw new RuntimeException("String_Node_Str");
      }
 else {
        fingerprintsResult=new GetSSHFingerprintsResult(fingerprintsRequest,sshFingerprints);
      }
    }
 catch (    CloudOperationNotSupportedException e) {
      fingerprintsResult=new GetSSHFingerprintsResult(fingerprintsRequest,new HashSet<String>());
    }
    fingerprintsRequest.getResult().onNext(fingerprintsResult);
    eventBus.notify(fingerprintsResult.selector(),new Event(getSSHFingerprintsRequestEvent.getHeaders(),fingerprintsResult));
    LOGGER.info("String_Node_Str");
  }
 catch (  Exception e) {
    GetSSHFingerprintsResult failure=new GetSSHFingerprintsResult("String_Node_Str",e,fingerprintsRequest);
    fingerprintsRequest.getResult().onNext(failure);
    eventBus.notify(failure.selector(),new Event(getSSHFingerprintsRequestEvent.getHeaders(),failure));
  }
}