After some tests, Eclipse is no longer able to execute applications because a Virtual BUG appears to be running. However, there is no Virtual BUG window nor any "stop" button in the console view. Is it any lock file to be deleted?
Have you tried hitting Esc to exit the Virtual BUG? If that doesn’t work, type exit in the console view. And if you’re still having problems, try closing and re-launching Eclipse.
Let us know if you’re still having problems!