code: protected void setJaasLoginContextEntry(ServiceReference<?> ref) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(this, tc, "setJaasLoginContextEntry", ref);
          }
  
          if (ref != null) {
              jaasLoginContextEntryName = (String) ref.getProperty("name");
          }
      }
docs: Declarative services method to set the JAASLoginContextEntry.