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https://issues.apache.org/jira/browse/CASSANDRA-11216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joshua McKenzie updated CASSANDRA-11216:
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Reviewer: Branimir Lambov
> Range.compareTo() violates the contract of Comparable
> -----------------------------------------------------
>
> Key: CASSANDRA-11216
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11216
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Jason Brown
> Assignee: Jason Brown
> Priority: Minor
>
> When running some quick-check style tests, I discovered that if both of the
> ranges being compared wrap around, then the result of the comparison depends
> on which range is evaluated first. For example, two ranges:
> A = { -1, 2 }
> B = { -2, 1 }
> and then compare them together:
> A.compareTo(B) == -1
> B.compareTo(A) == -1
> This is because the logic of the existing {{Range.compareTo()}} simply checks
> to see if the {{this}} range wraps around, and returns -1. This bug does not
> appear to affect c* until 3.0, and then only in one place
> ({{MerkleTrees.TokenRangeComparator#compare}}) that I could identify.
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