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https://issues.apache.org/jira/browse/AXIS2-4722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12869564#action_12869564
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Hiranya Jayathilaka commented on AXIS2-4722:
--------------------------------------------
There is actually another problem in UDP transport. Even if you have configured
the UDP listener globally, each service has to be explicitly configured for the
UDP transport. Otherwise the following error will be displayed:
2010-05-20 16:43:58,507 [-] [main] INFO UDPListener UDP Listener started
2010-05-20 16:43:58,507 [-] [main] WARN UDPListener Unable to configure the
service SimpleStockQuoteService for the UDP transport: Service doesn't have
configuration information for transport udp. This service is being marked as
faulty and will not be available over the UDP transport.
2010-05-20 16:43:58,507 [-] [main] WARN UDPListener Disabling the udp
transport for the service SimpleStockQuoteService, because it is not configured
properly for the service
So basically the listener configured at the axis2.xml is useless. I would
expect a service to use the global listener when it is not configured for the
UDP transport. WDYT?
> NPE Thrown When Enabling the UDP Listener Globally
> --------------------------------------------------
>
> Key: AXIS2-4722
> URL: https://issues.apache.org/jira/browse/AXIS2-4722
> Project: Axis2
> Issue Type: Bug
> Components: transports
> Reporter: Hiranya Jayathilaka
> Fix For: 1.6
>
> Attachments: AXIS2-4722.patch
>
>
> Steps to reproduce:
> 1. Enable the UDP listener in the axis2.xml by adding the following entry:
> <transportReceiver name="udp"
> class="org.apache.axis2.transport.udp.UDPListener">
> <parameter name="transport.udp.port">9999</parameter>
> <parameter name="transport.udp.contentType">text/xml</parameter>
> </transportReceiver>
> 2. Start the server and following NPE will be thrown:
> 2010-05-20 16:02:43,890 [-] [main] ERROR ListenerManager Couldn't initialize
> the udptransport listener
> java.lang.NullPointerException
> at
> org.apache.axis2.transport.base.datagram.AbstractDatagramTransportListener.startEndpoint(AbstractDatagramTransportListener.java:75)
> at
> org.apache.axis2.transport.base.datagram.AbstractDatagramTransportListener.startEndpoint(AbstractDatagramTransportListener.java:31)
> at
> org.apache.axis2.transport.base.AbstractTransportListenerEx.init(AbstractTransportListenerEx.java:58)
> at
> org.apache.axis2.transport.base.datagram.AbstractDatagramTransportListener.init(AbstractDatagramTransportListener.java:41)
> at org.apache.axis2.engine.ListenerManager.init(ListenerManager.java:83)
> at
> samples.util.SampleAxis2ServerManager.start(SampleAxis2ServerManager.java:110)
> at samples.util.SampleAxis2Server.startServer(SampleAxis2Server.java:61)
> at samples.util.SampleAxis2Server.main(SampleAxis2Server.java:40)
> I was able to reproduce this issue with Synapse and the sample Axis2 server
> that comes with Synapse. I will soon attach a patch.
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