Originally Posted By: MacManiac
I would hazard a guess that somewhere early on when you were trying out some website such as http://www.speedtest.net (which runs a Java Applet to get its' result) you were prompted to install Java from the Apple support download page and simply forgot that you did that....

It's possible, but if so, I've long since forgotten that I did.

Originally Posted By: MacManiac
I discovered that 10.7.3 actually disabled the Java runtime that I had installed earlier ....

When I checked my Java Preferences - General earlier I did notice that the the applet plug-in had been disabled. Whether that was a saving grace, I don't know.
The Java Applet Plug-in 14.0.3 is still enabled in my browser (Firefox 11.0).

But it would still be nice to know if there's something lurking in some program somewhere.