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https://issues.apache.org/jira/browse/HBASE-11064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enis Soztutar updated HBASE-11064:
----------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 0.98.5)
                       (was: 1.0.0)
                   2.0.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I've run the tests manually, and committed this to master and 0.99. 
[[email protected]] do you want this in 0.98? 

Thanks Rekha for the patch. 

> Odd behaviors of TableName for empty namespace
> ----------------------------------------------
>
>                 Key: HBASE-11064
>                 URL: https://issues.apache.org/jira/browse/HBASE-11064
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.3
>            Reporter: Hiroshi Ikeda
>            Assignee: Rekha Joshi
>            Priority: Trivial
>             Fix For: 0.99.0, 2.0.0
>
>         Attachments: HBASE-11064.1.patch, HBASE-11064.2.patch, 
> HBASE-11064.2.patch, HBASE-11064.3.patch
>
>
> In the class TableName,
> {code}
> public static byte [] isLegalFullyQualifiedTableName(final byte[] tableName) {
> ...
> int namespaceDelimIndex = ...
> if (namespaceDelimIndex == 0 || namespaceDelimIndex == -1){
>   isLegalTableQualifierName(tableName);
> } else {
> ...
> {code}
> That means, for example, giving ":a" as the argument throws an exception 
> which says invalid qualifier, instead of invalid namespace.
> Also, TableName.valueOf(String) and valueOf(byte[]) can create an instance 
> with empty namespace, which is inconsistent.



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