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https://issues.apache.org/jira/browse/JCR-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828985#action_12828985
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Felix Meschberger commented on JCR-2482:
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There is probably more to it, than just some syntax.
For the @Override it helps the compiler ensure correct extension. It is much
simpler fixing issues occurring at compile time than to write tests and try to
find issues at test/run time. Second it helps identifying overwritten methods
when looking at the source without an IDE, e.g. by just skimming SVN with a
browser.
For final: It serves AFAICT two purposes. One it helps preventing overwriting
values inadvertedly, thus going into the "find bugs at compile time" category
as the @Override annotation. The other use it might help compilers and vms
optimizie the variable (though this may be of less importance nowadays with
advanced compilers and modern VMs).
So, I think it is a good thing to have them.
> Reduce number of compiler warning by adding @Override and generics where
> appropriate
> -------------------------------------------------------------------------------------
>
> Key: JCR-2482
> URL: https://issues.apache.org/jira/browse/JCR-2482
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-jcr2spi
> Affects Versions: 2.1.0
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Fix For: 2.1.0
>
>
> Add @Override and generics where possible to reduce the number of warnings
> issued by the compiler.
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