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From "Chris Lockfort (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-8695) thrift column definition list sometimes immutable
Date Wed, 28 Jan 2015 15:31:35 GMT


Chris Lockfort updated CASSANDRA-8695:
    Attachment: cassandra-2.1.2-8695.patch

> thrift column definition list sometimes immutable
> -------------------------------------------------
>                 Key: CASSANDRA-8695
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Chris Lockfort
>         Attachments: cassandra-2.1.2-8695.patch
> When the input cf_def.column_metadata is null, ColumnDefinition.fromThrift can return
Collections.emptyList() (which is defined to be an immutable list) 
> One caller, CFMetaData.internalFromThrift , incorrectly assumes that this list will always
be mutable and tries to add to this immutable list, which causes the Cassandra server to throw
an exception.
> It looks like this is a bug in 2.1, but not in trunk.
> I can include my one-liner patch, but I'm not sure whether it is better to fix the caller
(to not assume random lists you get back from a method are mutable) or the callee (to always
return a mutable list).

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