IdCachedServicesImpl member cache may incorrectly cache member set upon login about openam

[sp193]

Just maybe: if there are no IdRepo plugins (aside from the "special" plugin) that support the membersType at the moment, an empty set is returned and this is cached. I don't know why this may happen, but I think there are signs of it.

Given this in IdServicesImpl:

           if (!idRepo.getSupportedTypes().contains(membersType) ||
               idRepo.getClass().getName().equals(IdConstants.SPECIAL_PLUGIN)) {
               // IdRepo plugin does not support the idType for
               // memberships
               noOfSuccess--;
               continue;
           }
...
       if (noOfSuccess == 0) {
           if (DEBUG.warningEnabled()) {
               DEBUG.warning(
                   "IdServicesImpl.getMembers: "
                   + "Unable to get members for identity " + type.getName()
                   + "::" + name + " in any configured data store", origEx);
           }
           if (origEx != null) {
               throw origEx;
           } else {
               return (Collections.EMPTY_SET);
           }
       } else {

In IdRepo log:

amIdm:10/12/2023 11:19:56:729 pm SGT: Thread[http-nio-9090-exec-16,5,main]: TransactionId[d7046390-39a8-47de-89f6-1a3d03dfcef4-17795]
IdCachedServicesImpl.getMemberships(): NO entry found in Cache for key = id=admin,ou=user,o=iot_platform,o=wisx,ou=services,dc=openam,dc=forgerock,dc=org. Getting members from DS: 
...
amIdm:10/12/2023 11:19:56:745 pm SGT: Thread[http-nio-9090-exec-16,5,main]: TransactionId[d7046390-39a8-47de-89f6-1a3d03dfcef4-17795]
IdRepoPluginsCache.getIdRepoPlugins for OrgName: o=IOT_PLATFORM,o=WISX,ou=services,dc=openam,dc=forgerock,dc=org Op: Operation: read Type: IdType: user
DJLDAPv3Repo:10/12/2023 11:19:56:745 pm SGT: Thread[http-nio-9090-exec-16,5,main]: TransactionId[d7046390-39a8-47de-89f6-1a3d03dfcef4-17795]
getSupportedTypes invoked
amIdm:10/12/2023 11:19:56:745 pm SGT: Thread[http-nio-9090-exec-16,5,main]: TransactionId[d7046390-39a8-47de-89f6-1a3d03dfcef4-17795]
WARNING: IdServicesImpl.getMemberships: Unable to get members for identity user::admin in any configured data store

And then in the Policy log, without any case of "getMemberships(): NO entry found in Cache for key" (implies a cache hit):

amPolicy:10/12/2023 11:20:05:703 pm SGT: Thread[http-nio-9090-exec-10,5,main]: TransactionId[d7046390-39a8-47de-89f6-1a3d03dfcef4-17865]
IdentitySubject.isMember():userIdentity type IdType: user can be a member of subjectIdentityType IdType: group:membership=false

The next case of "getMemberships(): NO entry found in Cache for key" is at 10/12/2023 11:20:12:241 pm SGT.