GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/19890
[SPARK-22688][SQL] Upgrade Janino version to 3.0.8
## What changes were proposed in this pull request?
This PR upgrade Janino version to 3.0.8. [Janino
3.0.8](https://janino-compiler.github.io/janino/changelog.html) includes an
important fix to reduce the number of constant pool entries by using 'sipush'
java bytecode.
* SIPUSH bytecode is not used for short integer constant
[#33](https://github.com/janino-compiler/janino/issues/33).
Please see detail in [this discussion
thread](https://github.com/apache/spark/pull/19518#issuecomment-346674976).
## How was this patch tested?
Existing tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-22688
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19890.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19890
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commit 68b24c95210d531ea2254f66db0fcdb6fe7af478
Author: Kazuaki Ishizaki <[email protected]>
Date: 2017-12-05T08:34:06Z
initial commit
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