Oracle lost in their attempt to protect their position using patents. They lost in their attempt to claim Google copied anything but a few lines of code. If they succeed in claiming you need their permission to use the Java APIs that they pushed as a community standard, software developers and innovation will be the losers. Learning the Java language is relatively simple, but mastering its APIs is a major investment you make as a Java developer. What Android did for Java developers is to allow them to make use of their individual career and professional investment to engage in a mobile marketplace that Sun failed to properly engage in.