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https://issues.apache.org/jira/browse/GROOVY-7986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
victus victusian closed GROOVY-7986.
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> Map sort gives an error : Comparison method violates its general contract!
> --------------------------------------------------------------------------
>
> Key: GROOVY-7986
> URL: https://issues.apache.org/jira/browse/GROOVY-7986
> Project: Groovy
> Issue Type: Bug
> Components: Groovy Console
> Affects Versions: 2.3.10, 2.4.6
> Reporter: victus victusian
> Assignee: Paul King
> Priority: Minor
> Labels: newbie
> Fix For: 2.4.7
>
>
> Trying to sort of a map gives an error.
> Code
> {code}
> usersPredictions = [guest697:[4, 10], guest809:[1, 6], guest993:[3, 6],
> guest785:[4, 15], guest893:[6, 6], guest399:[1, 6], guest206:[1, 7],
> guest202:[5, 7], admin:[4, 3], guest285:[1, 3], flo:[8, 52], guest753:[2, 3],
> guest635:[4, 3], guest754:[3, 11], guest024:[0, 4], guest971:[0, 5],
> guest824:[0, 6], guest295:[0, 6], guest421:[0, 6], guest389:[0, 6],
> guest095:[0, 7], guest000:[0, 6], guest430:[0,6], guest985:[0, 6],
> guest618:[0, 6], guest108:[0, 10], guest820:[0, 6], guest586:[0, 10],
> guest959:[0, 6], guest525:[0, 4], guest191:[0, 4], guest567:[0, 4],
> guest780:[0, 4], guest704:[0, 4], guest263:[0, 4], guest212:[0, 4],
> guest576:[0,4], guest494:[0, 4], guest378:[0, 4], guest589:[0, 4],
> guest507:[0, 4], guest580:[0, 4], guest396:[0, 4], guest879:[0, 4],
> guest647:[0, 4], guest128:[0, 4], guest234:[0, 10], guest040:[0, 4],
> guest510:[0, 10], guest583:[0, 4], guest247:[0,4], guest500:[0, 4],
> guest055:[0, 4], guest322:[0, 4], guest972:[0, 4], guest522:[0, 4],
> guest207:[0, 4], guest348:[0, 4], guest020:[0, 4], guest621:[0, 4],
> guest981:[0, 4], guest939:[0, 4], guest280:[0, 4], guest827:[0, 4],
> guest671:[0, 4], guest317:[0, 4], guest859:[0, 4], guest456:[0, 5],
> guest731:[0, 5], guest738:[0, 5], guest076:[0, 5], guest713:[0, 5],
> guest652:[0, 5], guest693:[0, 5], guest330:[0, 11], guest760:[0, 5],
> guest935:[0, 5], guest370:[0, 5], guest148:[0, 5], guest806:[0, 5],
> guest302:[0, 5], guest438:[0, 5], guest769:[0, 5], guest775:[0, 5],
> guest845:[0, 5], guest730:[0, 6], guest405:[0, 3], guest955:[0, 5],
> guest819:[0, 3], guest732:[0, 3], guest440:[0, 3], guest104:[0, 3],
> guest155:[0, 4], guest219:[0, 5], guest070:[0, 3], guest490:[0, 5],
> guest764:[0, 6], guest442:[0,6], guest067:[0, 6], guest185:[0, 6],
> guest484:[0, 6], guest739:[0, 6], guest073:[0, 6], guest179:[0, 6],
> guest275:[0, 6], guest631:[0, 6], guest755:[0, 6], guest221:[0, 6],
> guest232:[0, 6], guest152:[0, 6], guest485:[0, 6], guest911:[0, 6],
> guest925:[0, 6], guest626:[0, 6], guest675:[0, 3], guest457:[0, 4],
> guest923:[0, 4], guest605:[0, 3], guest624:[0, 4]]
> println usersPredictions.sort {it.value}
> {code}
> Error:
> {noformat}
> Caught: java.lang.IllegalArgumentException: Comparison method violates its
> general contract!
> java.lang.IllegalArgumentException: Comparison method violates its general
> contract!
> at indent.run(indent.groovy:124)
> {noformat}
> Removing some of the values - resolves the issue. In Online groovy console
> and version 1.8.6 this code is working without error.
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