code: SICoreConnection getCoreConnection() {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "getCoreConnection");
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "getCoreConnection", coreConnection);
          return coreConnection;
      }
docs: Returns the coreConnection for this Connection