pspng is an throwing exception when using ${subject.getAttributeValue(“loginid”)} in the userSearchFilter and subject is not in the cache.

pspng is throwing an error when using '${subject.getAttributeValue(“loginid”)} in the userSearchFilter.

PSPNG setting is
changeLog.consumer.pspng_activedirectory.userSearchFilter = (&(objectclass=person)(cn=${subject.getAttributeValue("loginid")})).

When subject is not in cache, we got following error:

java.lang.RuntimeException: Error substituting string: ‘${subject.getAttributeValue(“loginid”)}’

Caused by: java.lang.IllegalStateException: There is no open GrouperSession detected. Make sure to start a grouper session (e.g. GrouperSession.startRootSession() if you want to use a root session ) before calling this method

stack trace attached.