That's not SF situation. Probably 90%+ of boring big corps have millions and millions of lines of Java code to maintain and develop further. You just need to be

That's not SF situation. Probably 90%+ of boring big corps have millions and millions of lines of Java code to maintain and develop further. You just need to be in a city big enough to have some of those big companies. At least in Poland, it's hard to hire a generic senior Java dev. One possible explanation for what you're seeing (except not being in a right kind of city) is that maybe the offshoring has hit the US enough to affect the Java market? There tens/hundreds of thousands of Java developers working in Poland are doing offshore development for US/global corporations. The whole Central/Eastern Europe is like that.