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From "Michael Drzal (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5455) Add test to avoid unintentional reordering of items in HbaseObjectWritable
Date Fri, 24 Feb 2012 14:40:50 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Drzal updated HBASE-5455:
---------------------------------

    Attachment: HBASE-5455.diff

Updated TestHbaseObjectWritable to error on class code changes that would affect the wire
protocol.
                
> Add test to avoid unintentional reordering of items in HbaseObjectWritable
> --------------------------------------------------------------------------
>
>                 Key: HBASE-5455
>                 URL: https://issues.apache.org/jira/browse/HBASE-5455
>             Project: HBase
>          Issue Type: Test
>            Reporter: Michael Drzal
>            Priority: Minor
>             Fix For: 0.94.0
>
>         Attachments: HBASE-5455.diff
>
>
> HbaseObjectWritable has a static initialization block that assigns ints to various classes.
 The int is assigned by using a local variable that is incremented after each use.  If someone
adds a line in the middle of the block, this throws off everything after the change, and can
break client compatibility.  There is already a comment to not add/remove lines at the beginning
of this block.  It might make sense to have a test against a static set of ids.  If something
gets changed unintentionally, it would at least fail the tests.  If the change was intentional,
at the very least the test would need to get updated, and it would be a conscious decision.
> https://issues.apache.org/jira/browse/HBASE-5204 contains the the fix for one issue of
this type.

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