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https://issues.apache.org/jira/browse/CALCITE-2020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16216022#comment-16216022
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Julian Hyde commented on CALCITE-2020:
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I made this change on a branch,
https://github.com/julianhyde/calcite/tree/2020-upgrade-java-diff.
It works fine on JDK 8 and 9, but breaks on JDK 7:
{code}java.lang.UnsupportedClassVersionError: org/incava/diff/Diff :
Unsupported major.minor version 52.0{code}I know JDK 7 has been end-of-lifed,
but for now Calcite still supports JDK 7. So, 1.1.1 is fine, but we won't be
moving to it until we drop JDK 7 support.
> Upgrade org.incava java-diff
> ----------------------------
>
> Key: CALCITE-2020
> URL: https://issues.apache.org/jira/browse/CALCITE-2020
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
>
> Upgrade org.incava java-diff from 1.1 to 1.1.1.
> The license changed from 2-clause BSD to Apache. The package changed from
> {{org.incava.util.diff}} to {{org.incava.diff}}.
> The code is on github at https://github.com/jpace/java-diff.
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