1929964 - Typed model execution failed; see nested exception for details

• Execute custom webdynpro java application in portal, following error throw out intermittently. Normally issue get resolved temporarily after reboot of Java system, but after a while, error reoccurs.

• There is following error written in newest defaultTrace.*.trc file located in usr/sap/<SID>/<xx>/j2ee/cluster/server<x>/log directory.

JCoException while executing the Function ->''Z_test_function_module''
...
java.lang.Exception: Unknown error executing RFC:Z_test_function_module
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:38)
...
Caused by: java.lang.Exception: Unknown error executing RFC.
...
Caused by: com.sap.tc.cm.arfc2.gci.exception.ARFC2ModelExecuteException:
Typed model execution failed; see nested exception for details
...
Caused by: com.sap.tc.cm.arfc2.exception.ARFC2ExecutionException:
JCO Exception occured while exceution of the ARFC2 Executable Model
Object for destination '{0}'
...
Caused by: com.sap.conn.jco.JCoException: (103) JCO_ERROR_LOGON_FAILURE:
System received an expired SSO ticket on LIN mshost testserver
...
Caused by: RfcException: [null]
    message: System received an expired SSO ticket on LIN mshost testserver
    Return code: RFC_SYS_EXCEPTION(3)
    error group: 103
    key: RFC_ERROR_LOGON_FAILURE at com.sap.conn.rfc.api.RfcApi.RfcOpen(RfcApi.java:219)
 at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcClient.connect(MiddlewareJavaRfc.java:1347)
 ... 95 more
Caused by: RfcException: [LIN|testserver]
    message: System received an expired SSO ticket
    Return code: RFC_SYS_EXCEPTION(3)
    error group: 104
    key: RFC_ERROR_SYSTEM_FAILURE
Exception raised by LIN|testserver at com.sap.conn.rfc.engine.RfcIoOpenCntl.RfcReceive(RfcIoOpenCntl.java:2034)
 at com.sap.conn.rfc.api.RfcApi.RfcOpen(RfcApi.java:187)
 ... 96 more
Caused by: com.sap.conn.rfc.exceptions.RfcGetException: System received an expired SSO ticket
 at com.sap.conn.rfc.engine.RfcImp.ab_rfcerror(RfcImp.java:1157)
 at com.sap.conn.rfc.engine.RfcGet.rfcget_run(RfcGet.java:131)
 at com.sap.conn.rfc.engine.RfcGet.ab_rfcget(RfcGet.java:23)
 at com.sap.conn.rfc.engine.RfcRcv.ab_rfcreceive(RfcRcv.java:33)
 at com.sap.conn.rfc.engine.RfcIoOpenCntl.RfcReceive(RfcIoOpenCntl.java:1981)
 ... 97 more

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• SAP NetWeaver 7.3
• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4
• SAP NetWeaver Composition Environment 7.1
• SAP enhancement package 1 for SAP NetWeaver Composition Environment 7.1
• SAP NetWeaver Composition Environment 7.2

SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP NetWeaver Composition Environment 7.1 ; SAP NetWeaver Composition Environment 7.2 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 1 for SAP NetWeaver Composition Environment 7.1

webdynpro, web dynpro, function module, fm, JCoException while executing the Function, Typed model execution failed, arfc2, adaptive RFC, destination, current user, assertion ticket, logon ticket, technical user, System received an expired SSO ticket, RFC_ERROR_SYSTEM_FAILURE, RFC_SYS_EXCEPTION, ARFC2ModelExecuteException , KBA , BC-JAS-SEC-LGN , Logon, SSO , BC-WD-JAV , WebDynpro Java , BC-MID-CON-JCO , Java-Connector , Problem