2270826 - Activity "Introscope Host Adapter" ended with errors for SAP Web Dispatcher

The symptom only occurred while doing managed system configuration for system type 'SAP Web Dispatcher'.

While executing automatic Activity 'Introscpe Host Adapter' in phase 'Finalize Configuration' of 'Managed system configuration', the following error occurrs.

"<SID>/Webdisp: Activity Introscope Host Adapter ended with errors."

Error details like below:

"on instance: <>
failed configure Intrscope HostAdapter Agent for <host name>

Error
On instance : <host name>/<SID>
Failed to configure Introscope HostAdapter Agent for <FQDN>
Details
On Instance: <host name>/<SID>
Failed to configure Introscope HostAdapter Agent for <FQDN>
!! Exception : while trying to invoke the method java.lang.String.endsWith(java.lang.String) of an object
loaded from field com.sap.smd.agent.plugins.remotesetup.SapInstance.systemPath of an object
loaded from field com.sap.sup.admin.wily.hostagent.config.AgentConfigWriter._sapInstance of an object"

Error Screen is:

• SAP Solution Manager 7.1
• SAP Solution Manager 7.2

WEB DISPATCHER 7.73.xml, WEB DISPATCHER 7.53.xml, WEB DISPATCHER 7.77, WEB DISPATCHER *.xml , KBA , SV-SMG-DIA-WLY-HST , Host Adapter , Problem