Why are there so many issues with Java?

It seems that whenever there is a zero day vulnerability, there is a better than even chance that it will have something to do with Java. What is it about Java that makes it so prone to security threats? Oracle isn’t exactly some start-up operating out of a garage, you would think they would have this Java thing figured out by now.

Story added 22. January 2013, content source with full text you can find at link above.