JCO Destination Not found in non SAP JVM

[gaurav_shah33]

I have developed a sample web application which call BAPI function of S4Hana system available from SAP cal application library.

Following are the installation details:

1. A web Application running on SAP cloud foundry.

2. A RFC destination is set up connected to Cloud connector.

3. Another web application which is running on non-sap jvm.

4. SAP on-premise system is available from SAP cal library.

Problem:

What is working: Sample web application is calling BAPI function from a servlet. sample code below:

JCoDestination destination =JCoDestinationManager.getDestination(destinationName);

JCoRepository repo = destination.getRepository();

JCoFunction bapiFunction = repo.getFunction(functionName);

What is not working.

When same code is getting called from application which is deployed on same Cloud found account, This application uses AdoptJDK jvm. I am getting below error:

2021-03-12T18:07:37.73+0530 [APP/PROC/WEB/0] ERR {"msg":"Error while executing function:: BAPI_BUPA_CENTRAL_GETDETAIL","stacktrace":["com.sap.conn.jco.JCoException: Destination mx-cal does not exist","\tat com.sap.conn.jco.rt.DefaultDestinationManager.update(DefaultDestinationManager.java:216)","\tat com.sap.conn.jco.rt.DefaultDestinationManager.searchDestination(DefaultDestinationManager.java:432)","\tat com.sap.conn.jco.rt.DefaultDestinationManager.getDestinationInstance(DefaultDestinationManager.java:109)","\tat com.sap.conn.jco.JCoDestinationManager.getDestination(JCoDestinationManager.java:56)","\tat sapbapiconnector.actions.CallBAPI.executeBAPI(CallBAPI.java:78)","\tat sapbapiconnector.actions.CallBAPI.executeAction(CallBAPI.java:54)","\t

Both of the applications are calling same destination using same code

JCoDestination destination =JCoDestinationManager.getDestination(destinationName); but second one not able to look up.

Will you please help

[gaurav_shah33]

I am able to resolve above error by setting destination properties in DestinationDataProvider and then registering DestinationDataProvider in jco environment as shown below:

com.sap.conn.jco.ext.Environment.registerDestinationDataProvider(destinationDataProvider);

With this application is able to find destination but unable to create secured connector with SAP Gateway. Getting below error:

stacktrace":["com.sap.conn.jco.JCoException: Initialization of repository destination mx-cal failed: Connect to SAP gateway failed\n\tconnection parameters: TYPE=A DESTINATION=mx-cal ASHOST=mx-bapi SYSNR=00 PCS=1\n\nLOCATIONCPIC (TCP/IP) on local host with Unicode\nERROR hostname 'mx-bapi' unknown\nTIMEFri Mar 19 11:35:04 2021\nRELEASE 753\nCOMPONENT NI (network interface)\nVERSION 40\nRC-2\nMODULE/bas/753_REL/src/base/ni/niuxi.c\nLINE1771\nDETAILNiPGetHostByName: 'mx-bapi' not found\nSYSTEM CALL getaddrinfo\nCOUNTER 3\n","\tat com.sap.conn.jco.rt.RfcDestination.getSystemID(RfcDestination.java:1373)","\tat com.sap.conn.jco.rt.RepositoryManager.getRepository(RepositoryManager.java:28)","\tat com.sap.conn.jco.rt.RfcDestination.initRepository(RfcDestination.java:1287)","\tat com.sap.conn.jco.rt.RfcDestination.getRepository(RfcDestination.java:1635)","\tat com.sap.conn.jco.rt.RfcDestination.getRepository(RfcDestination.java:41)"