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:
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED],
| [EMAIL PROTECTED]
|
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: [EMAIL PROTECTED], com.boeing.nmt.client.
| [EMAIL PROTECTED], [EMAIL PROTECTED], com.boeing.nmt.clie
| [EMAIL PROTECTED], [EMAIL PROTECTED], com.boeing.nmt.cli
| [EMAIL PROTECTED], [EMAIL PROTECTED], com.boeing.nmt
| [EMAIL PROTECTED], [EMAIL PROTECTED]
| [java] device list size: 9
| [java] dev[1]: [EMAIL PROTECTED]
| [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: [EMAIL
PROTECTED] (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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