[jbosstools-issues] [JBoss JIRA] (JBIDE-20748) "Comparison method violates its general contract!" in JMX memory monitor view

[Denis Golovin (JIRA)]

     [ https://issues.jboss.org/browse/JBIDE-20748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Denis Golovin updated JBIDE-20748:
----------------------------------
    Steps to Reproduce: 
1. Start Eclipse with JMX Monitor installed
2. Connect to any available JVM  and open Properties view
3. Select memory tab and try to use sorting by any column


I added steps how to replicate this issue.

> "Comparison method violates its general contract!" in JMX memory monitor view
> -----------------------------------------------------------------------------
>
>                 Key: JBIDE-20748
>                 URL: https://issues.jboss.org/browse/JBIDE-20748
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: jmx
>    Affects Versions: 4.3.0.CR1
>            Reporter: Denis Golovin
>            Assignee: Denis Golovin
>            Priority: Critical
>             Fix For: 4.3.1.Final, 4.4.0.Alpha1
>
>
> {code}Workaround for comparator violation:
> 	- set system property java.util.Arrays.useLegacyMergeSort=true
> 	- use a 1.6 JRE 
> message: Comparison method violates its general contract!
> this: org.jboss.tools.jmx.jvmmonitor.internal.ui.properties.memory.HeapComparator
> comparator: null
> {code}



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