[infinispan-issues] [JBoss JIRA] (ISPN-8973) Administration console - changing eviction strategy results in error

[Vladimir Blagojevic (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-8973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13554999#comment-13554999 ] 

Vladimir Blagojevic commented on ISPN-8973:
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[~wburns] and [~ryanemerson] I've traced this one to the update of the memory model. The NPE exception is https://gist.github.com/vblagoje/039096a67c525a241b33bc81e1dc094c However, I was unable to find the cause of it even with a debugger turned on. I've traced all javascript objects and DMR commands and they seemed fine. Creation of the memory node works ok. However, on an update, I get NPE. (see attachment). The NPE happens when the size is set to any value. In my tests I used 10L. But it fails on any long value. Any help is appreciated. 

> Administration console - changing eviction strategy results in error
> --------------------------------------------------------------------
>
>                 Key: ISPN-8973
>                 URL: https://issues.jboss.org/browse/ISPN-8973
>             Project: Infinispan
>          Issue Type: Bug
>          Components: JMX, reporting and management
>    Affects Versions: 9.2.0.Final
>            Reporter: Roman Macor
>            Assignee: Vladimir Blagojevic
>         Attachments: Screen Shot 2018-04-03 at 2.42.46 PM.png
>
>
> Steps to reproduce:
> - start server in domain mode
> - click on cache container -> cache -> configuration -> memory tab ->  set memory
> - e.g. (Type: binary, Eviction: count, Size: 10, strategy: FIFO)
> - apply changes -> restart now
> - change the strategy to LRU, click apply changes
> That results in error popup:
> {"WFLYDC0074: Operation failed or was rolled back on all servers. Server failures:":{"server-group":{"cluster":{"host":{"master":{"server-one":{"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:":{"Operation step-3":"WFLYCTL0158: Operation handler failed: java.lang.NullPointerException"}},"server-two":{"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:":{"Operation step-3":"WFLYCTL0158: Operation handler failed: java.lang.NullPointerException"}}}}}}}}
> There are no error logs in the server log.



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