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https://issues.apache.org/jira/browse/CLI-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149576#comment-13149576
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Andrew Shirley commented on CLI-120:
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Sounds good, Make sure that whenever you do implement them, they follow the
rules outlined in the Javadoc on Object [1].
If you want a guide as to how to implement them properly, I would recommend the
chapter on the subject from Effective Java By Joshua Bloch or have a look at
what is produced by eclipse's "generate hashCode() and equals()" function (in
the source menu).
[1]:
http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html#hashCode()
> equals and hashCode are incomplete
> ----------------------------------
>
> Key: CLI-120
> URL: https://issues.apache.org/jira/browse/CLI-120
> Project: Commons CLI
> Issue Type: Improvement
> Components: CLI-2.x
> Reporter: Andrew Shirley
> Priority: Minor
> Fix For: 2.0
>
>
> there are many classes with equals and hashCode implemented however there are
> also classes which don't. We need to be consistent and if we are using equals
> then we need to define it for all classes in the affected hierarchy. For
> example OptionImpl has an equals but ParentImpl which extends OptionImpl and
> has several new members doesn't.
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