Jco connection error while calling Custom FM in CRM Internet Sales Application

Question

Hi ,
I am trying to do some customisation in the CRM ISA 4.0 development component.
Have followed the steps given in the Development and Extension Guide and tutorial PDF
Steps done for Custom RFC Call
1.       Create RFCs
2.       Edit file backendobject-config.xml in folder project_root\b2b_z\WEB-INF\xcm\customer\modification:-
3.       BackendBusinessObject Jco -
4.       BusinessObject -
5.       Edit file bom-config.xml in folder project_root\b2b_z\WEB-INF\xcm\customer\modification
6.       BusinessObjectManager BoM
7.       BackendAware-
8.       config.xml - to add custom actions
9.       Action  creation
10.     Page : Order_change.jsp.
The backend is the CRM system while making a call to the CRM system the connection to the CRM system is not working .
Similar to what is given in the tutorial the  getDefaultJCoConnection() is used .
But gettting null at the JCO connection.
JCO.Function func = getDefaultJCoConnection().getJCoFunction(‘CRM_ISA_SHOP_GETLIST’);
This is how my custom FM is being called.
Can someone help me with what may be the possible reason for this call failure.
While debugging and checking it shows null pointer exception in the JCo connection .
Thanks
Chinju

Answer 1

Hi Hamendra,
When the code debugging was done in Java then we got just the NullPointerException for the JCo.
In the nwa log shows
where BackendBusinessObjectBaseSAP is the standard Java Class in the ISA
Error at
com.sap.isa.core.eai.sp.jco.BackendBusinessObjectBaseSAP.getDefaultJCoConnection(BackendBusinessObjectBaseSAP.java:46)
Thanks
Chinju