ileasile opened a new pull request #3840:
URL: https://github.com/apache/zeppelin/pull/3840
### What is this PR for?
This PR provides Kotlin interpreter users with the new version of scripting
compiler (1.4) which results in following:
- Users may use new features of Kotlin 1.4.
- Compile times are significantly reduced for big notebooks: some
performance issues in scripting compiler resolution were fixed.
- Completion feature is now natively supported by REPL compiler, and it's a
way more smart.
- Interpreter itself and notebook scripts dependencies were splitted into
different submodules.
- Implicit receivers logic was transformed to a new base-class logic.
### What type of PR is it?
Improvement
### Todos
[ ] - Check and fix tests for Kotlin Spark interpreter
### What is the Jira issue?
https://issues.apache.org/jira/projects/ZEPPELIN/issues/ZEPPELIN-4905
### How should this be tested?
* Check unit tests for Kotlin and KotlinSpark interpreters
* Check that script dependencies specified for Kotlin interpreter are
availible in notebook cells
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update?
**No.**
* Is there breaking changes for older versions?
**Yes.** Kotlin itself has changed breaking changes in 1.4:
Also, some minor changes were made in scripting REPL itself:
- `InvokeWrapper` was moved to another package
(`org.apache.zeppelin.kotlin.script.InvokeWrapper`) which may break the
notebooks which use it
- Internal variables like `kc` are now not shown in the list of all
variables.
* Does this needs documentation?
**No.** Existing documentation is enough.
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