Uh oh: Oracle Sues to Recover Fees From Java

Oracle sues Google to recover fees from Java (Dalvik).

[From this story on ComputerWorld.]

Because I'm not a lawyer and I don't understand how the law works regarding virtually every tool I use (and it must be in the hundreds including all the libraries I consume), this scares me.

Oracle owns the language that I've programmed in for over a decade. In an economic sense, Java is my lifeline. If they ever decide to aggressively pursue revenues, I have no idea how that could impact me negatively. But it seems like it could be huge.

Do other developers get frightened too? Or is it just me? [comments below]