3601165 - Activity 'Introscope Host Adapter' failed due to error "Failed to close FileReader of instance.properties"

Activity 'Introscope Host Adapter' failed due to error message below:
---------------------------------------------------------------
(In SMDAgentApplication.X.log)
[Thread[Thread-23,5,main]                     ] Error      [Setup]Failed to close FileReader of instance.properties, path = /usr/sap/<SID>/<Instance No.>/j2ee/cluster/instance.properties
[EXCEPTION]
java.lang.NullPointerException: while trying to invoke the method java.io.FileReader.close() of a null object loaded from local variable 'fr'
    at com.sap.smd.agent.plugins.remotesetup.ConfigurationServices.gatherJ2ee710Params(ConfigurationServices.java:714)
    at com.sap.smd.agent.plugins.remotesetup.RemoteSetupService._setup(RemoteSetupService.java:154)
    at com.sap.smd.agent.plugins.remotesetup.RemoteSetupService.setup(RemoteSetupService.java:78)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.sap.engine.services.rmi_p4.P4DynamicSkeleton.dispatch(P4DynamicSkeleton.java:241)
    at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:483)
    at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:282)
    at com.sap.engine.services.rmi_p4.DispatchImpl.run(DispatchImpl.java:759)
    at java.lang.Thread.run(Thread.java:838)

• SAP Solution Manager 7.2

instance.properties, Introscope Host Adapter, FileReader, java.io.FileReader.close() , KBA , SV-SMG-DIA-WLY-HST , Host Adapter , Problem