Q: my macbook pro reset to factory

Apart from the fact that Java is a known security risk under the best of circumstances, where, exactly did you get the Java installation from?

BTW, you're in the Mac Pro forum, not the MacBook Pro forum (http://https://discussions.apple.com/community/notebooks/macbook_pro).

Along with how do you know it was java that did this? why can't you just use Lion Recovery Mode and TimeMachine or restore from a clone like any good windows or mac user?

http://www.apple.com/support/macbookpro

Mac OS X Help

http://www.apple.com/support/macbasics/

Isolating Issues in Mac OS

http://support.apple.com/kb/TS1388

https://www.apple.com/support/osx/

https://www.apple.com/support/quickassist/

http://www.apple.com/support/mac101/help/

http://www.apple.com/support/mac101/tour/

Get Help with your Product

http://docs.info.apple.com/article.html?artnum=304725

Mac OS Printing/Fax (any version), OS X Lion, OS X Mountain Lion

http://www.apple.com/support/osx/

printing in OS X Mountain Lion

http://support.apple.com/kb/HT4670

TimeMachine 101

https://support.apple.com/kb/HT1427

Mac OS X & Mountain Lion Community

https://discussions.apple.com/community/mac_os

https://discussions.apple.com/community/mac_os/os_x_mountain_lion?view=discussio ns

Recovery Mode

http://support.apple.com/kb/HT4718

ExpressLane

https://expresslane.apple.com/

This to assist with a clean install in addition to Lion Recovery (avoid the redownload)

http://reviews.cnet.com/8301-13727_7-20080989-263/how-to-create-an-os-x-lion-ins tallation-disc/

  Using Cloning as a Backup Strategy

This sometimes happens when you log in to a different account than you intended.