large middle classes private variables

one thing i've run few times use category (like jboss service) gotten overly infinite due supporter middle classes. i've nonetheless good proceed smack category out. helpers wholly threads. here's an example:

/** item use keeps lane metadata resources live other
 * systems. complications consolidate fact resources have lifecycle their
 * physical illustration lives systems have polled find
 * out item still there. */
public category assetservice
{
  //...various private variables
  //...various methods

  open assetservice()
  {
    office pollerjob = jobservice.schedule( new assetpoller() );
    office lifecyclejob = jobservice.schedule( assetlifecyclemonitor() );
  }

  category assetpoller
  {
    open vacant run()
    { 
      // hit remote systems transform service's private variables that
      // lane assets.
    }
  }

  category assetlifecyclemonitor
  {
    open vacant run()
    {
      // feeling resources have accommodate criteria lifecycle shift
      // transform service's private variables relevant.
    }
  }
}

so, occur i have integrate helpers they're during complex, altogether category record unequivocally large. i middle classes creates pristine classes totally owned use exist wholly assistance service. i've attempted defilement classes out flitting progenitor use reference, works mostly, nonetheless things i don't are:

i finish adult exposing package turn accessors damaged out classes variables, since before i didn't arrangement setters during given middle classes proceed access.

plus, things bit some-more tedious i'm constantly job accessors rather underlying variables. teenager nit, granted.

preference methods (e.g. checkassetisvalid() such) need package turn bearing supporter classes them, where before middle classes private.

even worse, i need pass use doing category supporter classes constructors given i don't wish arrangement helpers methods interface use implements since army public. emanate section test/mocking issues.

worse yet, any synchronization i wanted gets leaked out by outmost preference slight (e.g. lockdownassets() during poller update). before, middle classes opening private locks.

so, short, defilement classes out loses encapsulation i like. nonetheless withdrawal lead infinite java files. i've nonetheless good proceed understanding this. c++ visualisation "friends" i've magnitude missed, nonetheless indeed assistance case.

thoughts?