OkHttp3Requestor.INSTANCE compile error after updating Java SDK to 3.0.3

OK, I got this to work, but I don't really understand what is going on, so if anyone can verify that this is right, I would appreciate it.  I replaced:

DbxRequestConfig.Builder a = DbxRequestConfig.newBuilder("TuneLabPianoTuner/2.3");
DbxRequestConfig.Builder b = a.withHttpRequestor(OkHttp3Requestor.INSTANCE);
DbxRequestConfig requestConfig = b.build();
sDbxClient = new DbxClientV2(requestConfig, Main.DBaccessToken);

with this code:

DbxRequestConfig.Builder b = DbxRequestConfig.newBuilder("TuneLabPianoTuner/2.3");
DbxRequestConfig requestConfig = b.build();
sDbxClient = new DbxClientV2(requestConfig, Main.DBaccessToken);

and avoided the whole issue with OkHttp2Requestor.INSTANCE.  I briefly tested my application, and it did indeed access my dropbox files.  So what, if anything, am I missing by not augementing my DbxRequestionConfig.Builder ?

The OkHttp3Requestor.INSTANCE was removed in v3.0.0.

You can still use OkHttp3Requestor as shown in this example.

Your solution of removing the use of OkHttp3Requestor entirely is also fine. In that case, the SDK would use StandardHttpRequestor instead. Which to use if up to you. 

The Dropbox support website still links to the 2.1.2 SDK documenation, which of course still refers to OkHttp3Requestor.INSTANCE.  If you are on to version 3.x.x now, shouldn't your website link to the 3.x.x documentation?  (Start at www.dropbox.com/developers and click on Java, then the Documenation tab, and then "full documenation".)