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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-12381) Verify use of ByteBuffer.hasArray() in whole code base
Date Thu, 04 Aug 2016 14:36:20 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-12381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Stupp updated CASSANDRA-12381:
-------------------------------------
    Fix Version/s:     (was: 2.1.x)
                   3.0.x

> Verify use of ByteBuffer.hasArray() in whole code base
> ------------------------------------------------------
>
>                 Key: CASSANDRA-12381
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12381
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Robert Stupp
>            Assignee: Robert Stupp
>            Priority: Minor
>             Fix For: 3.0.x
>
>
> As [noted here|https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html#allocateDirect-int-],
a direct {{ByteBuffer}} can have a backing array.
> If a direct {{ByteBuffer}} has a backing array, we should not make any assumption on
how it is actually used.
> This ticket is about to check whether uses of {{ByteBuffer.hasArray()}} need to be replaced
with {{ByteBuffer.isDirect()}}.
> (With CASSANDRA-11870 however, there is no way that such a direct {{ByteBuffer}} has
a backing array.)



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