MOC_UnkVendor=ARFM4112I: Generational garbage collection is in use in a non-IBM JRE, but the nursery size limit is not known.
Explanation
The autonomic memory overload protection controller is unable to determine the nursery size limit.
User response
Either accept that explicit garbage collections will not be suppressed by ones initiated by the collector, set the maxNonFullGcMemoryRelease custom property on the cluster, or use a non-generational collector.