Amazon Kinesis Data Firehose Data Transformation says

Lambda blueprints are only available in the Node.js and Python languages. You can implement your own functions in other supported languages.

I think this section treats Java unfairly. You provide this whole Lambda SDK for Java yet cannot include a simple example? Even the handler signature is unclear, as you can see from questions on your own support forum as well as on StackOverflow.

Can you please include an example so Java developers do not feel forced to abandon their language of choice and/or google second-hand sites for scraps of information? Thanks.