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https://issues.apache.org/jira/browse/LANG-353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533977
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Christoph Kutzinski commented on LANG-353:
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Without knowing the details again (I don't know which kind of applications you
are thinking of): I think if you trying to compare enums from different
classloader, that's already the problem you have. I.e. you shouldn't try this
as it usually indicates that you have mixed up your classloader hierarchy. So
it's better for the enum's equal to fail fast instead of allowing something
which shouldn't be done.
But this discussion doesn't really belong here. If you would like to continue
it, you can contact me via e-mail: [EMAIL PROTECTED]
> Javadoc Example for EqualsBuilder is questionable
> -------------------------------------------------
>
> Key: LANG-353
> URL: https://issues.apache.org/jira/browse/LANG-353
> Project: Commons Lang
> Issue Type: Bug
> Reporter: Christoph Kutzinski
> Priority: Minor
> Fix For: 2.4
>
>
> The Javadoc example for the class EqualsBuilder ist questionable:
> public boolean equals(Object obj) {
> if (obj instanceof MyClass == false) {
> return false;
> }
> ...
> The implementation with instanceof lacks guarantees like equals-symmetry
> (see e.g. http://www.agiledeveloper.com/articles/equals062002.htm for a
> discussion of the issue)
> The example should be changed to use getClass(). Attention: the solution in
> the link above is incomplete as it doesn't check for null
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