Github user 1ambda commented on the issue:
https://github.com/apache/zeppelin/pull/1598
2+ Solutions.
#### 1. Use just reflection
- Pros: We can have only 1 interpreter `ElasticsearchInterpreter`
- Cons: but too much reflection code :(
#### 2. Create `Elasticsearch5Interpreter` for version 5.x
- Pros: We can remove reflection code by ignoring the interpreter code
based on the maven profile
- Cons: Code might be duplicated but we can extract them as an interface.
For example, `ElasticsearchInterpeterBase`
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