If you are having hard time finding job as Java Developer, try automation testing job or other IT related jobs where you have some skills. You get 90 days of unemployment in opt and 60 days in Stem.
For now use your consultancy name and address before 90 days of unemployment, so your opt does not get invalid. And then you will have plenty of time to find jobs. Once you have job you can use that to file your Stem opt.