Jean Arnaud

Make Web3j autocloseable

1

## Feature description_ It would be nice to make the `Web3j` interface implement autocloseable, this will prevent users to forget about closing it. Implementation effort should be minimal.

## Motivation Aggregators may returns prices with various decimal settings, not always 18. We need to normalize returned results to wei. ## Solution Use decimals call to the aggregator to...

## Motivation ## Solution