The zoho Java SDK often throws exceptions

The zoho Java SDK often throws exceptions

We updated our app to use version 2.0.1 of the zoho java-sdk recently.  Everything was fine for a while but we are seeing quite a few ZCRMException being thrown where the exception message is 'org.apache.http.NoHttpResponseException: www.zohoapis.com:443 failed to respond'

What is the cause of this error?

It appears the Zoho server is not responding at all or it is too slow so the Apache exception is being thrown.  Is there a way I can increase the Zoho receive timeout to see if that will help?  

Also can I get the source code for the java-sdk for the 2.0.1 so I can see what timeout is being used (most Maven artifacts provide a sources jar)?

-Dave