Getting Java mapping errors when testing my Interface mapping

Question

Hi,
I'm trying to test my interface mapping from IR, I keep getting these exceptions. All I'm doing in my interface mapping is I have two mapping programs a XSLT mapping with java helper functions with the XSL and a message mapping. In the test it pass thru the XSLT mapping but fails at Message mapping and throws the following exception. Any help on this is really appreciated.
10:03:26 Start of test
Call XSLT processor with stylsheet com/earthlink/xi/mapping/xmlc_to_crm_resp.xsl.
START APPLICATION TRACE ***
Response:
0
END APPLICATION TRACE ***
Returned form XSLT processor.
Call method execute of the application Java mapping com.sap.xi.tf._MM_XMLC_RESP_
Error during appliction Java mapping com/sap/xi/tf/_MM_XMLC_RESP_
java.lang.NullPointerException at com.sap.aii.mappingtool.tf3.AMappingProgram.exceptionCaught$(AMappingProgram.java:59) at com.sap.aii.mappingtool.tf3.Transformer.checkParserException(Transformer.java:182) at com.sap.aii.mappingtool.tf3.Transformer.start(Transformer.java:149) at com.sap.aii.mappingtool.tf3.AMappingProgram.execute(AMappingProgram.java:102) at com.sap.aii.ibrep.server.mapping.ibrun.RepJavaMapping.execute(RepJavaMapping.java:73) at com.sap.aii.ibrep.server.mapping.ibrun.RepSequenceMapping.execute(RepSequenceMapping.java:54) at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingHandler.run(RepMappingHandler.java:80) at com.sap.aii.ibrep.server.mapping.rt.MappingHandlerAdapter.run(MappingHandlerAdapter.java:107) at com.sap.aii.ibrep.server.mapping.ServerMapService.transformInterfaceMapping(ServerMapService.java:127) at com.sap.aii.ibrep.server.mapping.ServerMapService.transform(ServerMapService.java:104) at com.sap.aii.ibrep.sbeans.mapping.MapServiceBean.transform(MapServiceBean.java:40) at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0.transform(MapServiceRemoteObjectImpl0.java:167) at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0p4_Skel.dispatch(MapServiceRemoteObjectImpl0p4_Skel.java:104) at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:320) at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:198) at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:129) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(Native Method) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
10:03:26 End of test

Answer 1

Joe,
most likely your XSLT is outputting a not well-formed XML message.
Remove message mapping from the mapping list and execute it again, to check output.
Also, for mapping debugging in java enhanced function inside XSLT mappings, use the following:
1st, you need to pass the "inputparam" parameter from the XSLT runtime to the Java function (it needs to be one of the input parameters for the executed java function).
In the Java code itself, implement the following code:
AbstractTrace trace = (AbstractTrace) param.get(StreamTransformationConstants.MAPPING_TRACE);
trace.addInfo("Log your message here!");
where <i>param</i> is the input parameter refering to the <i>inputparam</i> from XSLT.
The AbstractTrace and StreamTransformationConstants classes can be found in the aii_map_api.jar file (used in Java mappings).
Regards,
Henrique.