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https://issues.apache.org/jira/browse/LANG-804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13637295#comment-13637295
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Thomas Neidhart commented on LANG-804:
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We could change the error message to "HashCodeBuilder requires a positive, odd
initial value" and then remove the extra check for 0.
> Redundant check for zero in HashCodeBuilder ctor
> ------------------------------------------------
>
> Key: LANG-804
> URL: https://issues.apache.org/jira/browse/LANG-804
> Project: Commons Lang
> Issue Type: Improvement
> Components: lang.builder.*
> Reporter: Sebb
> Priority: Minor
>
> The HashCodeBuilder(int, int) ctor checks both parameters for zero, as well
> as checking for an odd number.
> Zero is never odd, so the zero check could be eliminated.
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