docs: static void clearPartnerLevel() {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(tc, "clearPartnerLevel");
      partnerLevel.set(null);
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(tc, "clearPartnerLevel");
    }