avro

Bump easymock from 4.2 to 4.3 in /lang/java

Bumps [easymock](https://github.com/easymock/easymock) from 4.2 to 4.3.
- [Release notes](https://github.com/easymock/easymock/releases)
- [Changelog](https://github.com/easymock/easymock/blob/master/ReleaseNotes.md)
- [Commits](https://github.com/easymock/easymock/compare/easymock-4.2...easymock-4.3)

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