Android Studio Corrupted .java file after improper shutdown

Question

I hibernated my laptop when Android Studio was running and found later that the laptop had been shut down. Now one of my source files is appearing empty in Android Studio an

Answer 1

Simple steps that always helped me to solve this problem

Delete caches folder of the path

 C:\Users\user\.AndroidStudio3.6\system\caches.

Deleting above folder only sometimes will not work so, need to delete specific project's caches folder too

F:\AndroidStudioProjects\sampleApplication\.idea\caches