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https://issues.apache.org/jira/browse/LUCENE-3574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149679#comment-13149679
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Shai Erera commented on LUCENE-3574:
------------------------------------

Exactly (I think that's what I meant) -- we detect the Java version as best we 
can and store it in a constant JAVA_VERSION. It can be compared to JAVA_6/7 
thru an atLeast() API, like JAVA_VERSION.atLeast(JAVA_7).

The code in 3.5 will only know to detect up to Java 7, while the code in 5.2 
will know to detect Java 8.

Wouldn't that work?
                
> Add some more constants for newer Java versions to Constants.class, remove 
> outdated ones.
> -----------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3574
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3574
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: core/other
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 3.5, 4.0
>
>         Attachments: LUCENE-3574-3x.patch
>
>
> Preparation for LUCENE-3235:
> This adds constants to quickly detect Java6 and Java7 to Constants.java. It 
> also deprecated and removes the outdated historical Java versions.

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