Jane He created CASSJAVA-116:
--------------------------------

             Summary: Retry or Speculative Execution with RequestIdGenerator 
throws "Duplicate Key"
                 Key: CASSJAVA-116
                 URL: https://issues.apache.org/jira/browse/CASSJAVA-116
             Project: Apache Cassandra Java driver
          Issue Type: Improvement
          Components: Core
            Reporter: Jane He
            Assignee: Jane He


It's because CqlRequestHandler can call {{sendRequest}} more than one time, so 
"getDecoreatedStatement" can be called more than one time, so there will be 
duplicate key.
We should modify the {{RequestIdGenerator.getDecoratedStatement}}  so that
```
if (statement.getCustomPayload().containsKey(getCustomPayloadKey())) {
return statement;
}
```
This is a serious bug, we should release the fix ASAP.
 



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