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https://issues.apache.org/jira/browse/MAHOUT-264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803346#action_12803346
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Dawid Weiss commented on MAHOUT-264:
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Because these methods in java.util.Arrays have been introduced as part of the
Java 1.6 API and are not present on JRE 1.5. They are also intrinsic methods
(replaced by HotSpot with efficient Java code); I believe the overhead of using
System.arraycopy instead is minimal (I haven't verified this, but I believe
Arrays intrinsics don't nullify the array space before copying, while the
replacement does).
> Make mahout-math compatible with Java 1.5 (bytecode and standard library).
> --------------------------------------------------------------------------
>
> Key: MAHOUT-264
> URL: https://issues.apache.org/jira/browse/MAHOUT-264
> Project: Mahout
> Issue Type: Wish
> Components: Math
> Reporter: Dawid Weiss
> Assignee: Benson Margulies
> Priority: Minor
> Attachments: MAHOUT-264.patch
>
>
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