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https://issues.apache.org/jira/browse/LUCENE-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler resolved LUCENE-5704.
-----------------------------------
Resolution: Fixed
Please reopen when releasing 4.8.2, because this bug prevents compilation on
recent JDK 8.
> Compile error in various DocValues formats with Java 8u20
> ---------------------------------------------------------
>
> Key: LUCENE-5704
> URL: https://issues.apache.org/jira/browse/LUCENE-5704
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Affects Versions: 4.8.1
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Labels: Java8
> Fix For: 4.9, 5.0
>
> Attachments: LUCENE-5704.patch
>
>
> When compiling the codecs with Java 8 update 20 (coming soon), we fail: The
> constructors initialize a final closeable field inside a try block, which
> makes the field possibly undefined in the finally block.
> Previous Java versions somehow did not detect this bug, but it is a real one.
> Final fields must be initialized before they are used. Earlier compilers did
> not detect this bug, but I think it is not buggy, because IOUtils can handle
> null.
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