Due to this wonderful blog here , I was able to know that SVN Tortoise got upgraded and fix the issue.
However , When I open the project It threw following exception and I was unable to use Jdeveloper at all.
[IllegalStateException in o.i.explorer.IconOverLayTracker$NodeWatcher:802]
After few hours of trying so many things in jdeveloper , I found the solution that
I need to uncheck couple of option in Tools –> Preferences –> Versioning –> General to remove
some pain , But still I want to know the root cause of error and why I need to uncheck it.
1. Use Navigator State Overly Icons - Uncheck
2. Use Navigator State Overly Labels – Uncheck
This however solved my issue , But please comment if you have time to fix the root cause of problem.