[HADOOP-14511] WritableRpcEngine.Invocation#toString NPE on null parameters

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.9.0, 2.8.2
• Component/s: ipc
• Target Version/s: 2.9.0, 2.8.2
• Assignee: John Zhuge
• Reporter: John Zhuge
• Created: 08/Jun/17 19:43
• Updated: 09/Jun/17 04:37
• Resolved: 09/Jun/17 04:37

Description

WritableRpcEngine.Invocation#toString will throw NPE if parameters is null:

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(")");

Issue Links

• is broken by: HDFS-11861 ipc.Client.Connection#sendRpcRequest should log request name
• is related to: HADOOP-12579 Deprecate WriteableRPCEngine