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https://issues.apache.org/jira/browse/LANG-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13858293#comment-13858293
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Duncan Jones commented on LANG-637:
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Hi Matt, if you are willing to make the change that would be easier than for me
to submit a patch etc. If you don't have the time I'm happy to submit one,
however. Thanks for taking the time to review this!
> There should be a DifferenceBuilder with a ReflectionDifferenceBuilder
> implementation
> -------------------------------------------------------------------------------------
>
> Key: LANG-637
> URL: https://issues.apache.org/jira/browse/LANG-637
> Project: Commons Lang
> Issue Type: Improvement
> Components: lang.builder.*
> Reporter: Eric Lewis
> Priority: Minor
> Fix For: Review Patch
>
> Attachments: Diff.java, DiffBuilder.java, DiffBuilderTest.java,
> DiffList.java, DiffListTest.java, DiffTest.java, Diffable.java,
> commons-lang3-LANG-637-complete.patch, commons-lang3-LANG-637.patch
>
>
> The ToStringBuilder and ReflectionToStringBuilder are great tools for
> everyday development.
> We use them to show all the properties in an object, which comes handy
> especially for testing.
> However, JUnit with its assertEquals() just outputs the toString() of the two
> compared objects. For complex objects, this becomes unreadable.
> So, it would be great to have a DifferenceBuilder with a
> ReflectionDifferenceBuilder implementation to be able to get only the
> differing properties of two objects. The question is whether the two objects
> would have to be of the same type or not.
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