[jira] [Updated] (HBASE-4784) Void return types not handled correctly for CoprocessorProtocol methods

["Gary Helmling (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Helmling updated HBASE-4784:
---------------------------------

    Assignee: Gary Helmling
      Status: Patch Available  (was: Open)
    
> Void return types not handled correctly for CoprocessorProtocol methods
> -----------------------------------------------------------------------
>
>                 Key: HBASE-4784
>                 URL: https://issues.apache.org/jira/browse/HBASE-4784
>             Project: HBase
>          Issue Type: Bug
>          Components: coprocessors
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Gary Helmling
>            Assignee: Gary Helmling
>            Priority: Critical
>             Fix For: 0.92.0
>
>         Attachments: HBASE-4784.patch
>
>
> If a CoprocessorProtocol derived interface defines a method with a void return type, the method cannot be called using HTable.coprocessorExec().  Instead ExecResult will throw an IOException on the client trying to do a Class.forName() on "void".
> Looking at ExecResult, it appears that the valueType field (which causes the error) is no longer even used, so I'd suggest we just get rid of it.

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