Merge pull request #232 from desperateCoder/231-void-return-type

import java.lang.annotation.Documented;

import java.lang.annotation.Retention;

import java.lang.annotation.Target;

import java.lang.reflect.Constructor;

import java.lang.reflect.Type;

import io.reactivex.Observable;

    private static final String TAG = NextcloudAPI.class.getCanonicalName();

    private static final Void NOTHING = getVoidInstance();

    private static Void getVoidInstance() {

        Constructor<Void> constructor = (Constructor<Void>) Void.class.getDeclaredConstructors()[0];

        constructor.setAccessible(true);

        try {

            return constructor.newInstance();

        } catch (Exception e) {

            throw new IllegalStateException("Should never happen, but did: unable to instantiate Void");

        }

    }

    private NetworkRequest networkRequest;

    private Gson gson;

                    Log.d(TAG, result.toString());

                }

                */

            } else {

                result = (T) NOTHING;

            }

        }

        return result;