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https://issues.apache.org/jira/browse/LANG-780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168966#comment-13168966
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Alex Pokotilo commented on LANG-780:
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"Using Enum#name() means that the same hashCode will be used for different Enum
instances that happen to have the same name.
That seems like quite a disadvantage to me."(c)
Proposed method is just an example and to avoid your concent we can use
something like following
private static int hashCodeForEnum(Enum enumItem)
{ return (enumItem.getClass().getName()+enumItem.name()).hashCode(); }
But again this is just proposal. I think initial point is valid. I want to see
the same hashCode for enum using HashCodeBuilder. This would be great.
> add public org.apache.commons.lang.builder.HashCodeBuilder append(Enum
> value) to HashCodeBuilder
> --------------------------------------------------------------------------------------------------
>
> Key: LANG-780
> URL: https://issues.apache.org/jira/browse/LANG-780
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.builder.*
> Affects Versions: 2.5
> Reporter: Alex Pokotilo
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Since Enum's hashCode return different values between calls this can cause
> different values if enum appended to HashCodeBuilder
> IMHO adding append for enum would be enough to solve this entirely
> public org.apache.commons.lang.builder.HashCodeBuilder append(Enum value)
> {
> append(value.name().hashCode());
> return this;
> }
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