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https://issues.apache.org/jira/browse/HDFS-11954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16043400#comment-16043400
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John Zhuge commented on HDFS-11954:
-----------------------------------
WriteableRPCEngine is deprecated in trunk, so won't fix in trunk.
> WritableRpcEngine.Invocation#toString should handle null parameters
> -------------------------------------------------------------------
>
> Key: HDFS-11954
> URL: https://issues.apache.org/jira/browse/HDFS-11954
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.8.0
> Reporter: John Zhuge
> Assignee: John Zhuge
> Priority: Minor
>
> WritableRpcEngine.Invocation#toString will throw NPE if {{parameters}} is
> null:
> {code:title=WritableRpcEngine.Invocation#toString}
> buffer.append(methodName);
> buffer.append("(");
> for (int i = 0; i < parameters.length; i++) {
> if (i != 0)
> buffer.append(", ");
> buffer.append(parameters[i]);
> }
> buffer.append(")");
> {code}
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