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https://issues.apache.org/jira/browse/DERBY-6809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17008363#comment-17008363
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Richard N. Hillegas commented on DERBY-6809:
--------------------------------------------

Thanks for volunteering to investigate these kinds of optimizations. It is 
likely that Derby performance would benefit from being run on more modern JVMs. 
Note that the current release policy is to compile Derby into Java 9 byte code. 
One practical consequence of this is that a submission can be committed only if 
it compiles cleanly on Java 9 and the tests pass on that JVM.

We could, of course, hold a vote to move the byte code level forward to Java 
11. That would make some sense since Java 11 is an LTS version and 9 isn't.

> Java 1.8 feature use
> --------------------
>
>                 Key: DERBY-6809
>                 URL: https://issues.apache.org/jira/browse/DERBY-6809
>             Project: Derby
>          Issue Type: Improvement
>          Components: Network Server
>    Affects Versions: 11.0.0.0
>            Reporter: sagar
>            Priority: Major
>         Attachments: 2017-12-04-143613_1366x768_scrot.png, binary_format.png, 
> latest.png, nb8.png
>
>
> Suggestion ...
> Is it possible to auto modify the existing source code using tools like 
> Netbeans, and take advantage of the new features in JDK 1.8 for better 
> multiuser performance and better utilization of current day multicore 
> processors?
> Plainly put, can we have from 11.0 onwards a version of derby which takes 
> advantage of the advancements and new features in java 1.8 ... 



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