docs: public static MfpDiagnostics initialize() {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(tc, "initialize");
  
      // We should only do this once
      if (singleton == null) {
        singleton = new MfpDiagnostics();
        singleton.register(packageList);
      }
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(tc, "initialize");
      return singleton;
    }