Is there a java compiler flag that allows me to use goto as a valid construct? If not, are there any third-party java compilers that supports goto?
goto
You shouldn't, ever, use goto, as it's EVIL ;-)
More seriously, maybe you could have a look at the famous article from E. Dijkstra : http://www.u.arizona.edu/~rubinson/copyright_violations/Go_To_Considered_Harmful.html