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https://issues.apache.org/jira/browse/DERBY-6974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16252773#comment-16252773
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Rick Hillegas commented on DERBY-6974:
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Hey Bryan,
The min.version variable is used to set the "source" and "target" attributes of
the <javac> element, that is, to set the -source and -target command line
options of the the JDK's javac tool. See
https://docs.oracle.com/javase/9/tools/javac.htm#JSWOR627. I see that 1.9 isn't
a synonym for level 9 (1.8 was a synonym for level 8). I will refresh the
patch. Does that answer your question?
> Deprecate support for building Derby under JDK 8
> ------------------------------------------------
>
> Key: DERBY-6974
> URL: https://issues.apache.org/jira/browse/DERBY-6974
> Project: Derby
> Issue Type: Task
> Components: Build tools
> Affects Versions: 10.15.0.0
> Reporter: Rick Hillegas
> Assignee: Rick Hillegas
> Attachments: derby-6974-01-aa-deprecateJDK8.diff,
> derby-6974-01-ab-deprecateJDK8.diff, derby-6974-02-minVersion1.9.diff
>
>
> In July, the Derby community voted to deprecate support for JDK 8 and move
> development on the 10.15 trunk to JDK 9. See
> http://apache-database.10148.n7.nabble.com/RESULT-VOTE-Sunsetting-support-for-Java-8-td147735.html
> This issue tracks the work of converting the Derby build from JDK 8 to JDK 9
> and higher. This effort relies on the work already done on DERBY-6856.
> Platform-specific distributions of Oracle JDK 9 can be found here:
> http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html
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