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<TITLE>Java Client library : RPCClient throws nullpointerexception</TITLE>
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<P><FONT FACE="Arial" SIZE=2>Hi</FONT>
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<P><FONT FACE="Arial" SIZE=2>Iam getting the following EOF Exception when trying to cal the mapcall() on Rpcclient in java library. This is the same exception I get if trying to create a new instance of JsonRpcClient.</FONT></P>
<P><FONT FACE="Arial" SIZE=2>Similar call() in .net library works. Iam basically using the same example as in .net. There are no examples for java libraray.</FONT></P>
<P><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>Consumer com.rabbitmq.client.RpcClient$1@1ae9aaa method handleDelivery for channel AMQChannel(amqp://guest@GBWMAPPROPC01.emea.win.ml.com:5672/,1) threw an exception:</FONT></P>
<P><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>java.lang.NullPointerException</FONT></U>
<BR> <FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>at com.rabbitmq.client.RpcClient$1.handleDelivery(</FONT><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>RpcClient.java:153</FONT></U><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>)</FONT>
<BR> <FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>at com.rabbitmq.client.impl.ChannelN.processAsync(</FONT><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>ChannelN.java:223</FONT></U><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>)</FONT>
<BR> <FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(</FONT><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>AMQChannel.java:159</FONT></U><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>)</FONT>
<BR> <FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>at com.rabbitmq.client.impl.AMQChannel.handleFrame(</FONT><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>AMQChannel.java:110</FONT></U><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>)</FONT>
<BR> <FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(</FONT><U><FONT COLOR="#000080" FACE="Courier New" SIZE=2>AMQConnection.java:456</FONT></U><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>)</FONT>
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<P><FONT COLOR="#FF0000" FACE="Courier New" SIZE=2>Following is the sample code which is raising the exception</FONT>
<BR><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>Connection _conn = Utility.createConnection("GBWMAPPROPC01.emea.win.ml.com", Constants.DEFAULT_HEARTBEAT);</FONT>
<BR><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>Channel _channel= _conn.createChannel();</FONT>
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<P><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>RpcClient _rpcClient = </FONT>
<BR><FONT COLOR="#0000FF" FACE="Arial" SIZE=2> new RpcClient(_channel,"amq.direct","Admin");</FONT>
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<P><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>Map<String, Object> request = createRequest(requestType);</FONT>
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<P><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>// this line throws the exception</FONT>
<BR><FONT COLOR="#0000FF" FACE="Arial" SIZE=2>Map<String, Object> reply = _rpcClient.mapCall(request);</FONT><FONT COLOR="#000000" FACE="Courier New" SIZE=2></FONT>
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<P><FONT COLOR="#000000" FACE="Courier New" SIZE=2>Thanks</FONT>
<BR><FONT COLOR="#000000" FACE="Courier New" SIZE=2>Rajesh</FONT>
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