Program: 32052
Project: 32052
Buggy source:
/** 
 * Delete a device
 * @param deviceId the device id
 * @param session the session
 * @param password the passwoerd
 * @param callback the asynchronous callback.
 */
public void deleteDevice(final String deviceId,final String password,final ApiCallback<Void> callback){
  DeleteDeviceParams dummyparams=new DeleteDeviceParams();
  mCryptoRestClient.deleteDevice(deviceId,dummyparams,new ApiCallback<Void>(){
    @Override public void onSuccess(    Void info){
      if (null != callback) {
        callback.onSuccess(null);
      }
    }
    @Override public void onNetworkError(    Exception e){
      if (null != callback) {
        callback.onNetworkError(e);
      }
    }
    @Override public void onMatrixError(    MatrixError matrixError){
      Log.d(LOG_TAG,"String_Node_Str");
      RegistrationFlowResponse registrationFlowResponse=null;
      if ((null != matrixError.mStatus) && (matrixError.mStatus == 401)) {
        try {
          registrationFlowResponse=JsonUtils.toRegistrationFlowResponse(matrixError.mErrorBodyAsString);
        }
 catch (        Exception castExcept) {
          Log.e(LOG_TAG,"String_Node_Str");
        }
      }
 else {
        Log.d(LOG_TAG,"String_Node_Str" + matrixError.mStatus);
      }
      if (null != registrationFlowResponse) {
        DeleteDeviceParams params=new DeleteDeviceParams();
        params.auth=new DeleteDeviceAuth();
        params.auth.session=registrationFlowResponse.session;
        params.auth.type="String_Node_Str";
        params.auth.user=mCredentials.userId;
        params.auth.password=password;
        mCryptoRestClient.deleteDevice(deviceId,params,callback);
      }
 else {
        if (null != callback) {
          callback.onMatrixError(matrixError);
        }
      }
    }
    @Override public void onUnexpectedError(    Exception e){
      if (null != callback) {
        callback.onNetworkError(e);
      }
    }
  }
);
}

Fixed version (ground truth):
/** 
 * Delete a device
 * @param deviceId the device id
 * @param password the passwoerd
 * @param callback the asynchronous callback.
 */
public void deleteDevice(final String deviceId,final String password,final ApiCallback<Void> callback){
  DeleteDeviceParams dummyparams=new DeleteDeviceParams();
  mCryptoRestClient.deleteDevice(deviceId,dummyparams,new ApiCallback<Void>(){
    @Override public void onSuccess(    Void info){
      if (null != callback) {
        callback.onSuccess(null);
      }
    }
    @Override public void onNetworkError(    Exception e){
      if (null != callback) {
        callback.onNetworkError(e);
      }
    }
    @Override public void onMatrixError(    MatrixError matrixError){
      Log.d(LOG_TAG,"String_Node_Str");
      RegistrationFlowResponse registrationFlowResponse=null;
      if ((null != matrixError.mStatus) && (matrixError.mStatus == 401)) {
        try {
          registrationFlowResponse=JsonUtils.toRegistrationFlowResponse(matrixError.mErrorBodyAsString);
        }
 catch (        Exception castExcept) {
          Log.e(LOG_TAG,"String_Node_Str");
        }
      }
 else {
        Log.d(LOG_TAG,"String_Node_Str" + matrixError.mStatus);
      }
      if (null != registrationFlowResponse) {
        DeleteDeviceParams params=new DeleteDeviceParams();
        params.auth=new DeleteDeviceAuth();
        params.auth.session=registrationFlowResponse.session;
        params.auth.type="String_Node_Str";
        params.auth.user=mCredentials.userId;
        params.auth.password=password;
        mCryptoRestClient.deleteDevice(deviceId,params,callback);
      }
 else {
        if (null != callback) {
          callback.onMatrixError(matrixError);
        }
      }
    }
    @Override public void onUnexpectedError(    Exception e){
      if (null != callback) {
        callback.onNetworkError(e);
      }
    }
  }
);
}