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https://issues.apache.org/jira/browse/HBASE-18951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16198075#comment-16198075
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Duo Zhang commented on HBASE-18951:
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And also see CellUtil.matchingQualifier methods, if the byte array is null then
we just check if the qualifier length of the given cell is 0. I haven't found a
place where we treat null qualifier differently with an empty byte array.
> Use Builder pattern to remove nullable parameters for checkAndXXX methods in
> RawAsyncTable/AsyncTable interface
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-18951
> URL: https://issues.apache.org/jira/browse/HBASE-18951
> Project: HBase
> Issue Type: Sub-task
> Components: Client
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Blocker
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-18951.patch
>
>
> As Optional is not supposed to be used as method parameters but we do not
> want nullable parameters.
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