2066537 - RFC_ERROR_PROGRAM:Parameter containing a user ID missing

• Error in default traces ==> "Error##Java###[Setup]A failure occured while connecting to ABAP stack on localhost sys=XX client=XXX user=null [EXCEPTION]{0}#1#com.sap.mw.jco.JCO$Exception: (101) RFC_ERROR_PROGRAM: Parameter containing a user ID is missing: neither user nor user alias nor external ID nor SSO ticket nor X.509 certificate is specified."
• Diagtool traces (note 1045019) show the error ==> A failure occured while connecting to ABAP stack on localhost sys=$$ client=001 user=SAPJSF
  [EXCEPTION]
   com.sap.mw.jco.JCO$Exception: (101) RFC_ERROR_PROGRAM: Parameter password ('passwd') is missing
  at com.sap.mw.jco.MiddlewareJRfc.generateJCoException(MiddlewareJRfc.java:518)
  at com.sap.mw.jco.MiddlewareJRfc$Client.initialize(MiddlewareJRfc.java:1053)
  at com.sap.mw.jco.JCO$Client.connect(JCO.java:3491)
  at com.sap.smd.agent.plugins.remotesetup.CommonServices.getJcoClient(CommonServices.java:699)
  at com.sap.smd.agent.plugins.remotesetup.CommonServices.getJcoClient(CommonServices.java:603)
  at com.sap.smd.agent.plugins.remotesetup.AbapIMAdapter.doesUserHaveAbapRoleOrProfile(AbapIMAdapter.java:115)
  at com.sap.smd.agent.plugins.remotesetup.AbapIMAdapter.doesUserHaveAbapRole(AbapIM[EXCEPTION] com.sap.mw.jco.JCO$Exception: (101) RFC_ERROR_PROGRAM: Parameter password ('passwd') is missingat com.sap.mw.jco.MiddlewareJRfc.generateJCoException(MiddlewareJRfc.java:518)at com.sap.mw.jco.MiddlewareJRfc$Client.initialize(MiddlewareJRfc.java:1053)"

• This issue can occur during installation(steps like "SSO Setup) or during Java engine startup.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP Netweaver 7.0X with ABAP as UME data source.

SSO ticket,X.509,netweaver, naetweaver java, alias, user, user management, diagtool, security, middleware,SAPJSF,configuration editor, ume , KBA , BC-JAS-SEC , Security, User Management , BC-MID-CON-JCO , Java-Connector , Problem