[jbossws-users] [JBossWS] - Problem marshalling data from a List
I have a problem sending a list of item to a client.
I send an object, which contains a member that itself stores a list of device objects.
These objects store a member that is either a tag or a network device. ( I don't get
to define the WSDL or Schema. )
I confirm that my List object does store a collection of devices which each in turn have a
tag.
| 13:58:54,126 DEBUG [AssociationValuesDAO] Device.deviceList:
| [com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@18a5d49,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@f2a0ef,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@123b9c1,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@786e16,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@838143,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@19b7dfa,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@16bb63e,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@89e0c6,
| com.boeing.nmt.types.DeviceData$Device$AeroScoutTag@3fcfb]
|
I send this across the wire ( server and client are local ). I unpack it and everything
works great Until I try to access the tags inside the device objects in the List.
They're NULL.
| [java] device list: [com.boeing.nmt.client.ws.DeviceData$Device@102a0a5,
com.boeing.nmt.client.
| ws.DeviceData$Device@180b22e, com.boeing.nmt.client.ws.DeviceData$Device@31fb31,
com.boeing.nmt.clie
| nt.ws.DeviceData$Device@162522b, com.boeing.nmt.client.ws.DeviceData$Device@89dd,
com.boeing.nmt.cli
| ent.ws.DeviceData$Device@15b1773, com.boeing.nmt.client.ws.DeviceData$Device@160bf50,
com.boeing.nmt
| .client.ws.DeviceData$Device@b05236,
com.boeing.nmt.client.ws.DeviceData$Device@1e55794]
| [java] device list size: 9
| [java] dev[1]: com.boeing.nmt.client.ws.DeviceData$Device@102a0a5
| [java] Exception! java.lang.NullPointerException
|
I trigger the exception this way:
| List <DeviceData.Device> devList =
aagr.getAssociationValues().getDeviceData().getDevice();
| System.out.println("device list: " + devList.toString() );
| System.out.println("device list size: " + devList.size() );
| // devList.toArray()[0] is a DeviceData.Device.Tag object, for whatever reason,
it's NULL
| System.out.println("dev[1]: " + devList.toArray()[0].toString());
| System.out.println("dev[1]: " +
((DeviceData.Device)devList.toArray()[0]).toString());
|
I look back at the logs to see what JBoss is unmarshalling, and it looks fine.
2007-06-08 13:58:54,158 DEBUG [org.jboss.ws.core.soap.ObjectContent] xmlFragment:
[source=
| <Results xmlns:ns2="http://www.boeing.com/NLS/ns/Types"
xmlns:ns3="http://www.boeing.com/NLS/ns/soapTypes"
Version="0.3.0">
| <ns3:AssociationReturnCode>
| <ns3:Success>true</ns3:Success>
| <ns3:Reason>Dumb luck</ns3:Reason>
| </ns3:AssociationReturnCode>
| <ns3:AssociationValues DeleteOtherDeviceAssociations="false"
CreateDeviceAssociations="NONE">
| <ns3:DeviceData Version="0.3.0">
| <ns2:Device xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:type="ns2:AeroScoutTag" MacId="000CCC654323">
| <ns2:BatteryStatus>Unknown
| </ns2:BatteryStatus>
| </ns2:Device>
| ...
| </ns3:DeviceData>
| <ns3:AssetData Version="0.3.0" OwnerAppId="foo"
AssetId="fah">
| <ns2:AssetDisplayName>gah</ns2:AssetDisplayName>
| <ns2:AssetDescription>fah</ns2:AssetDescription>
| <ns2:AssetSuspended>true</ns2:AssetSuspended>
| </ns3:AssetData>
| </ns3:AssociationValues>
| </Results>
| ]
| 2007-06-08 13:58:54,158 DEBUG [org.jboss.ws.core.soap.SOAPContentElement]
-----------------------------------
| 2007-06-08 13:58:54,220 DEBUG [org.jboss.ws.core.soap.MessageContextAssociation]
popMessageContext: org.jboss.ws.core.jaxws.handler.SOAPMessageContextJAXWS@131a24c (Thread
http-0.0.0.0-8080-2)
I'm using JBoss 4.0.5 w/ JBossWS 1.2.0. Does anyone have an idea what am I missing?
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