Error in AWS Authentication : cannot get Region

[Shinobi47]

Hello,
I was trying to use AWSAuthentication to connect a EC2 instance with Amazon ElasticSearch instance. but I was getting this error while trying to start the app :

com.amazonaws.SdkClientException: Unable to find a region via the region provider chain.

After debugging, the Region was null.

I Fixed the AWSAuthentication in order to get the default region of the server.

Here is the pull request : #69

with this fix, it gets the correct Region.

[jjarmolowicz]

Any movement here in this project? This pull request looks promising for me. Can this be merged and released?