Void return types not handled correctly for CoprocessorProtocol methods
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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
Priority: Critical
Fix For: 0.92.0
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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