Program: 168354
Project: 168354
Buggy source:
public SimplePromise<Patient> syncPatient(final Patient patient,@Nullable final DefaultResponseCallbackListener callbackListener){
  final SimpleDeferredObject<Patient> deferred=new SimpleDeferredObject<>();
  final SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(OpenMRS.getInstance());
  Boolean syncstate=prefs.getBoolean("String_Node_Str",true);
  if (syncstate) {
    AndroidDeferredManager dm=new AndroidDeferredManager();
    dm.when(new LocationApi().getLocationUuid(),getIdGenPatientIdentifier(),getPatientIdentifierTypeUuid()).done(new DoneCallback<MultipleResults>(){
      @Override public void onDone(      final MultipleResults results){
        final List<PatientIdentifier> identifiers=new ArrayList<>();
        final PatientIdentifier identifier=new PatientIdentifier();
        identifier.setLocation((Location)results.get(0).getResult());
        identifier.setIdentifier((String)results.get(1).getResult());
        identifier.setIdentifierType((IdentifierType)results.get(2).getResult());
        identifiers.add(identifier);
        patient.setIdentifiers(identifiers);
        patient.setUuid(null);
        final RestApi apiService=RestServiceBuilder.createService(RestApi.class);
        Call<Patient> call=apiService.createPatient(patient);
        call.enqueue(new Callback<Patient>(){
          @Override public void onResponse(          Call<Patient> call,          Response<Patient> response){
            if (response.isSuccessful()) {
              Patient newPatient=response.body();
              ToastUtil.success("String_Node_Str" + patient.getPerson().getName().getNameString() + "String_Node_Str"+ newPatient.getUuid());
              patient.setSynced(true);
              patient.setUuid(newPatient.getUuid());
              new PatientDAO().updatePatient(patient.getId(),patient);
              if (!patient.getEncounters().equals("String_Node_Str"))               addEncounters(patient);
              deferred.resolve(patient);
              if (callbackListener != null) {
                callbackListener.onResponse();
              }
            }
 else {
              ToastUtil.error("String_Node_Str" + patient.getId() + "String_Node_Str"+ response.message());
              deferred.reject(new RuntimeException("String_Node_Str" + response.errorBody().toString()));
              if (callbackListener != null) {
                callbackListener.onErrorResponse();
              }
            }
          }
          @Override public void onFailure(          Call<Patient> call,          Throwable t){
            ToastUtil.notify("String_Node_Str" + patient.getId() + "String_Node_Str"+ t.toString());
            deferred.reject(t);
            if (callbackListener != null) {
              callbackListener.onErrorResponse();
            }
          }
        }
);
      }
    }
);
  }
 else {
    ToastUtil.notify("String_Node_Str" + "String_Node_Str");
    if (callbackListener != null) {
      callbackListener.onErrorResponse();
    }
  }
  return deferred.promise();
}

Fixed version (ground truth):
public SimplePromise<Patient> syncPatient(final Patient patient,@Nullable final DefaultResponseCallbackListener callbackListener){
  final SimpleDeferredObject<Patient> deferred=new SimpleDeferredObject<>();
  final SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(OpenMRS.getInstance());
  Boolean syncstate=prefs.getBoolean("String_Node_Str",true);
  if (syncstate) {
    AndroidDeferredManager dm=new AndroidDeferredManager();
    dm.when(new LocationApi().getLocationUuid(),getIdGenPatientIdentifier(),getPatientIdentifierTypeUuid()).done(new DoneCallback<MultipleResults>(){
      @Override public void onDone(      final MultipleResults results){
        final List<PatientIdentifier> identifiers=new ArrayList<>();
        final PatientIdentifier identifier=new PatientIdentifier();
        identifier.setLocation((Location)results.get(0).getResult());
        identifier.setIdentifier((String)results.get(1).getResult());
        identifier.setIdentifierType((IdentifierType)results.get(2).getResult());
        identifiers.add(identifier);
        patient.setIdentifiers(identifiers);
        patient.setUuid(null);
        final RestApi apiService=RestServiceBuilder.createService(RestApi.class);
        Call<Patient> call=apiService.createPatient(patient);
        call.enqueue(new Callback<Patient>(){
          @Override public void onResponse(          Call<Patient> call,          Response<Patient> response){
            if (response.isSuccessful()) {
              Patient newPatient=response.body();
              ToastUtil.success("String_Node_Str" + patient.getPerson().getName().getNameString() + "String_Node_Str"+ newPatient.getUuid());
              patient.setSynced(true);
              patient.setUuid(newPatient.getUuid());
              new PatientDAO().updatePatient(patient.getId(),patient);
              if (!patient.getEncounters().equals("String_Node_Str"))               addEncounters(patient);
              deferred.resolve(patient);
              if (callbackListener != null) {
                callbackListener.onResponse();
              }
            }
 else {
              ToastUtil.error("String_Node_Str" + patient.getId() + "String_Node_Str"+ response.message());
              deferred.reject(new RuntimeException("String_Node_Str" + response.errorBody().toString()));
              if (callbackListener != null) {
                callbackListener.onErrorResponse();
              }
            }
          }
          @Override public void onFailure(          Call<Patient> call,          Throwable t){
            ToastUtil.notify("String_Node_Str" + patient.getId() + "String_Node_Str"+ t.toString());
            deferred.reject(t);
            if (callbackListener != null) {
              callbackListener.onErrorResponse();
            }
          }
        }
);
      }
    }
);
  }
 else {
    ToastUtil.notify("String_Node_Str" + "String_Node_Str");
    if (callbackListener != null) {
      callbackListener.onResponse();
    }
  }
  return deferred.promise();
}