Error while deploying MDM Java Connector for EP

Question

Hi,
i am a newbie to MDM.i am trying to develop a portal component with the blog "Using MDM5.5 Java Connector with SAP Enterprise Portal 6.0" as reference.
i created an MDM system in portal and the connection tests passed.
But when i deploy the code i get the following exception-
java.lang.NullPointerException
     at com.sap.mdm.connector.connection.MdmConnectionFactory.getConnectionEx(MdmConnectionFactory.java:170)
     at com.sap.portal.ivs.internalconnector.ConnectionProvider.getConnection(ConnectionProvider.java:304)
     at com.sap.portal.ivs.internalconnector.ConnectionProvider.getConnection(ConnectionProvider.java:258)
     at com.sapportals.portal.ivs.cg.ConnectorService.getConnection(ConnectorService.java:478)
     at com.sapportals.portal.ivs.cg.ConnectorService.getConnection(ConnectorService.java:85)
     at com.cts.mdm.MDMtestcomp.doContent(MDMtestcomp.java:36)(this points to the line <b>connection = cgService.getConnection("MDM_SYSTEM_ALIAS", prop);</b>)
     at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:209)
     at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
     at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
This is my code-
IConnectorGatewayService cgService = (IConnectorGatewayService)
               PortalRuntime.getRuntimeResources().getService(IConnectorService.KEY);
          ConnectionProperties prop =
          new ConnectionProperties(request.getLocale(), request.getUser());
               IConnection connection = null;
               connection = cgService.getConnection("MDM_SYSTEM_ALIAS", prop);
     INative nativeInterface = connection.retrieveNative();
                    CatalogData catalog = new CatalogData();
                         catalog = (CatalogData)
               nativeInterface.getNative(CatalogData.class.getName());
                    ResultSetDefinition rsd = new ResultSetDefinition("Customers");
          rsd.AddField("Name");
          Search search = new Search("Customers");
          A2iResultSet rs = null;
                         rs = catalog.GetResultSet(search,rsd,"Name",true,0);
response.write(rs.GetFields().toString());
Have i missed anything?
Should i deploy any .jar file? (i've already deployed MDM4J.jar) and referenced it in portalapp!
Thanks in advance
SwarnaDeepika

Answer 1

Hello Swarna:
I believe than rather than deploying the MDM4J.jar, you should deploy this components:
com.sap.mdm.tech.mdm4j.sda
com.sap.mdm.tech.connector.sda
BPMDMTECHN00_0.sca
BPMDMAPPLI00_0.sca
Once you deploy those, you should have no problems. Another solution would be to take your MDM4J.jar and wrap it into an SDA, then deploy, but that would be pretty much the same.
Those components are included on your MDM CD. Please ensure you use the same Version/support package/hotfix all over your landscape.
I hope that helps
Alejandro