All Android operating systems infringe Java API packages, Oracle says Judge asked to block "continued acts of infringement of the Java platform." ...

That three percent included packages, methods, and class names. But those declarations—like starting a function with package java.lang —can only be used in certain ways.

Wondering what the lawyers and programmers are talking about in the highest-profile tech trial in years? Here's a guide to the ties between Android and Java -- and the history leading up to the case.