[jira] [Updated] (AVRO-897) Map lookup behavior is ill-defined in Java

["Garrett Wu (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Garrett Wu updated AVRO-897:
----------------------------

    Attachment: avro-charsequence-map-test.tar.gz

Attached a small test case to better explain what I mean.
                
> Map lookup behavior is ill-defined in Java
> ------------------------------------------
>
>                 Key: AVRO-897
>                 URL: https://issues.apache.org/jira/browse/AVRO-897
>             Project: Avro
>          Issue Type: Bug
>    Affects Versions: 1.5.1
>            Reporter: Garrett Wu
>         Attachments: avro-charsequence-map-test.tar.gz
>
>
> In Java, an Avro {{"map"}} is a Java {{Map}}.  The map keys are type {{"string"}}, which maps to a Java {{CharSequence}}.
> Clients must know to use {{Utf8}} objects when calling {{get()}} or {{containsKey()}}.  Instead, {{GenericDatumReader}} should instantiate a {{Map}} instance with a {{Comparator}} suitable for comparing any type of {{CharSequence}}.

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