[jira] [Commented] (IGNITE-5444) Collections.singletonList is not properly serialized by binary marshaller

["Evgenii Zhuravlev (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-5444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16059308#comment-16059308 ] 

Evgenii Zhuravlev commented on IGNITE-5444:
-------------------------------------------

Do we need to implement full support for Collections.SingletonList here, or it's will be enough that after deserialization it will became an ArrayList, as for other unknown collections? 

> Collections.singletonList is not properly serialized by binary marshaller
> -------------------------------------------------------------------------
>
>                 Key: IGNITE-5444
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5444
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 2.0
>            Reporter: Valentin Kulichenko
>            Assignee: William Do
>             Fix For: 2.1
>
>         Attachments: BinaryObjectSingletonList.java
>
>
> Test attached. {{Collections.singletonList}} is apparently serialized by optimized marshaller, because when deserialized, it doesn't return collection of binary objects, but rather collection of deserialized objects.
> Most likely the reason for this is that {{Collections.singletonList}} is not recognized by {{BinaryUtils.knownCollection}} method.



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