Null Pointer Exception

[arunpriya]

I have one outbound channel that reads data from database and sends the data to LLP. I have another channel that reads from the LLP sender and writes to a file. I get the following exception with start the channels.

java.lang.NullPointerException
at org.mule.providers.tcp.TcpMessageDispatcher.write( TcpMessageDispatcher.java:121)
at org.mule.providers.tcp.TcpMessageDispatcher.doDisp atch(TcpMessageDispatcher.java:92)
at org.mule.providers.AbstractMessageDispatcher$Worke r.run(AbstractMessageDispatcher.java:257)
at org.mule.impl.work.WorkerContext.run(WorkerContext .java:290)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.runTask(ThreadPoolExecutor. java:650)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.run(ThreadPoolExecutor.java :675)
at java.lang.Thread.run(Thread.java:595)

{}

Any ideas!

Priya.

[chrisl]

Re: Null Pointer Exception

Are you starting the LLP listener channel first?

[arunpriya]

Re: Null Pointer Exception

I tried just running one channel that reads from the database and sends to LLP sender. Now I get error below.

java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl .java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSoc ketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.j ava:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.j ava:366)
at java.net.Socket.connect(Socket.java:516)
at java.net.Socket.connect(Socket.java:466)
at java.net.Socket.<init>(Socket.java:366)
at java.net.Socket.<init>(Socket.java:208)
at org.mule.providers.tcp.TcpMessageDispatcher.create Socket(TcpMessageDispatcher.java:103)
at org.mule.providers.tcp.TcpMessageDispatcher.initSo cket(TcpMessageDispatcher.java:76)
at org.mule.providers.tcp.TcpMessageDispatcher.doDisp atch(TcpMessageDispatcher.java:91)
at org.mule.providers.AbstractMessageDispatcher$Worke r.run(AbstractMessageDispatcher.java:257)
at org.mule.impl.work.WorkerContext.run(WorkerContext .java:290)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.runTask(ThreadPoolExecutor. java:650)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.run(ThreadPoolExecutor.java :675)
at java.lang.Thread.run(Thread.java:595)

{}

Priya.

[albertosaez]

Re: Null Pointer Exception

This last exception is launch when no listener is found: what is exactly what you&#039;ve defined

[chrisl]

Re: Null Pointer Exception

Yes, if your LLP sender doesn&#039;t have anything to connect to, you will get that exception as Alberto stated.

Make sure you start your listener first, then the sender.

-Chris

[arunpriya]

Re: Null Pointer Exception

I tried starting the listener first and then the sender. I still get the Null Pointer Exception.
java.lang.NullPointerException
at org.mule.providers.tcp.TcpMessageDispatcher.write( TcpMessageDispatcher.java:121)
at org.mule.providers.tcp.TcpMessageDispatcher.doDisp atch(TcpMessageDispatcher.java:92)
at org.mule.providers.AbstractMessageDispatcher$Worke r.run(AbstractMessageDispatcher.java:257)
at org.mule.impl.work.WorkerContext.run(WorkerContext .java:290)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.runTask(ThreadPoolExecutor. java:650)
at edu.emory.mathcs.backport.java.util.concurrent.Thr eadPoolExecutor$Worker.run(ThreadPoolExecutor.java :675)
at java.lang.Thread.run(Thread.java:595)

{}

Priya.

[chrisl]

Re: Null Pointer Exception

Can you post your channel XML?

[arunpriya]

Re: Null Pointer Exception

Chris,

Here is the channel.

<com.webreach.mirth.model.Channel>
<id>e341baec-801d-493e-a709-9e925c595bea</id>
<name>INFANT_OUT</name>
<description></description>
<enabled>true</enabled>
<version>1.2.0</version>
<revision>0</revision>
<direction>OUTBOUND</direction>
<protocol>HL7</protocol>
<mode>ROUTER</mode>
<sourceConnector>
<name>sourceConnector</name>
<properties>
<property name="pollingFrequency">5000</property>
<property name="username">root</property>
<property name="DataType">Database Reader</property>
<property name="useAck">1</property>
<property name="URL">jdbcdbc:PDN</property>
<property name="query">SELECT `INFANT_ID`, `I_F_NAME`, `I_L_NAME`, `ISEX` FROM PDN_PROD_INFANT
WHERE INFANT_ID = 1;</property>
<property name="password">vivsar</property>
<property name="host">query</property>
<property name="driver">sun.jdbc.odbc.JdbcOdbcDriver</property>
<property name="ack">UPDATE PDN_PROD_INFANT&#x0D;
SET UPDATE_FLAG = &apos;Y&apos;&#x0D;
WHERE ${infant_id} = 1;</property>
</properties>
<transformer>
<steps/>
</transformer>
<filter>
<rules/>
</filter>
<transportName>Database Reader</transportName>
</sourceConnector>
<destinationConnectors>
<com.webreach.mirth.model.Connector>
<name>Destination 1</name>
<properties>
<property name="tcpProtocolClassName">org.mule.providers.tcp .protocols.LlpProtocol</property>
<property name="segmentEnd">0x0D</property>
<property name="messageEnd">0x1C</property>
<property name="keepSendSocketOpen">0</property>
<property name="bufferSize">65536</property>
<property name="port">6660</property>
<property name="sendTimeout">5000</property>
<property name="messageStart">0x0B</property>
<property name="maxRetryCount">50</property>
<property name="charEncoding">hex</property>
<property name="DataType">LLP Sender</property>
<property name="recordSeparator">0x0D</property>
<property name="host">127.0.0.1</property>
</properties>
<transformer>
<steps>
<com.webreach.mirth.model.Step>
<sequenceNumber>0</sequenceNumber>
<name>LastName</name>
<script>LastName = msg[&apos;i_l_name&apos;].toString();</script>
<type>HL7 Message Builder</type>
<data class="map">
<entry>
<string>Mapping</string>
<string>msg[&apos;i_l_name&apos;].toString()</string>
</entry>
<entry>
<string>Variable</string>
<string>LastName</string>
</entry>
</data>
</com.webreach.mirth.model.Step>
<com.webreach.mirth.model.Step>
<sequenceNumber>1</sequenceNumber>
<name>FirstName</name>
<script>FirstName = msg[&apos;i_f_name&apos;].toString();</script>
<type>HL7 Message Builder</type>
<data class="map">
<entry>
<string>Mapping</string>
<string>msg[&apos;i_f_name&apos;].toString()</string>
</entry>
<entry>
<string>Variable</string>
<string>FirstName</string>
</entry>
</data>
</com.webreach.mirth.model.Step>
<com.webreach.mirth.model.Step>
<sequenceNumber>2</sequenceNumber>
<name>Gender</name>
<script>Gender = msg[&apos;i_sex&apos;].toString();</script>
<type>HL7 Message Builder</type>
<data class="map">
<entry>
<string>Mapping</string>
<string>msg[&apos;i_sex&apos;].toString()</string>
</entry>
<entry>
<string>Variable</string>
<string>Gender</string>
</entry>
</data>
</com.webreach.mirth.model.Step>
</steps>
<template></template>
</transformer>
<filter>
<rules/>
</filter>
<transportName>LLP Sender</transportName>
</com.webreach.mirth.model.Connector>
</destinationConnectors>
<properties>
<property name="initialState">stopped</property>
<property name="store_messages">true</property>
<property name="recv_xml_encoded">false</property>
<property name="encryptData">false</property>
<property name="transactional">false</property>
<property name="max_message_age">-1</property>
<property name="error_messages_only">false</property>
</properties>
<preprocessingScript>// Modify the message variable below to pre process data&#x0D;
return message;</preprocessingScript>
</com.webreach.mirth.model.Channel>

[arunpriya]

Re: Null Pointer Exception

Chris,

I had uploaded the channel where I get Null Pointer Exception. Could you provide me with your feedback as I have a deadline to meet.

Thanks!
Priya.

[chrisl]

Re: Null Pointer Exception

Can you also post the LLP listener? In the channel you have JDBC to LLP Sender. You must have the LLP Listener started first,or the LLP sender on the destination will have nothing to connect to.

-Chris

[arunpriya]

Re: Null Pointer Exception

Chris,

Below is the LLP Listener to File Writer Channel.

<com.webreach.mirth.model.Channel>
<id>3190d0ea-de4b-43ab-a567-3caebe2eef54</id>
<name>LLP to File Writer</name>
<description></description>
<enabled>true</enabled>
<version>1.2.0</version>
<revision>0</revision>
<direction>INBOUND</direction>
<protocol>HL7</protocol>
<mode>ROUTER</mode>
<sourceConnector>
<name>sourceConnector</name>
<properties>
<property name="tcpProtocolClassName">org.mule.providers.tcp .protocols.LlpProtocol</property>
<property name="segmentEnd">0x0D</property>
<property name="messageEnd">0x1C</property>
<property name="sendACK">1</property>
<property name="keepSendSocketOpen">0</property>
<property name="bufferSize">65536</property>
<property name="port">6660</property>
<property name="messageStart">0x0B</property>
<property name="charEncoding">hex</property>
<property name="DataType">LLP Listener</property>
<property name="recordSeparator">0x0D</property>
<property name="receiveTimeout">5000</property>
<property name="host">127.0.0.1</property>
</properties>
<transformer>
<steps/>
</transformer>
<filter>
<rules/>
</filter>
<transportName>LLP Listener</transportName>
</sourceConnector>
<destinationConnectors>
<com.webreach.mirth.model.Connector>
<name>Destination 1</name>
<properties>
<property name="outputAppend">0</property>
<property name="DataType">File Writer</property>
<property name="outputPattern">results${UUID}.txt</property>
<property name="template">${message.rawData}</property>
<property name="host">c:/Mirth_Output</property>
</properties>
<transformer>
<steps/>
</transformer>
<filter>
<rules/>
</filter>
<transportName>File Writer</transportName>
</com.webreach.mirth.model.Connector>
</destinationConnectors>
<properties>
<property name="initialState">stopped</property>
<property name="store_messages">true</property>
<property name="recv_xml_encoded">false</property>
<property name="encryptData">false</property>
<property name="transactional">false</property>
<property name="max_message_age">-1</property>
<property name="error_messages_only">false</property>
</properties>
<preprocessingScript>// Modify the message variable below to pre process data&#x0D;
return message;</preprocessingScript>
</com.webreach.mirth.model.Channel>

Thanks in advance,
Priya.

[arunpriya]

Re: Null Pointer Exception


Chris,

I made sure that I have Listener Started first before the Sender. I still get this error message.

Thanks!
Priya.

[chrisl]

Re: Null Pointer Exception

Thanks,

I&#039;ll look into this today.

[arunpriya]

Re: Null Pointer Exception

Chris,

Did you get a chance to look into the channels?

Thanks!
Priya.

[Sona42]

[QUOTE=chrisl;1311]Can you also post the LLP listener? In the channel you have JDBC to LLP Sender. You must have the LLP Listener started first,or the LLP sender on the destination will have nothing to connect to.

Hi Chris

I see same error I am using Mirth 3.3 source is db reader I am calling a SP and destination is a filewriter. Please let me know what can be done