I had a similar problem, and after much wailing and gnashing of teeth, I found that it made a difference which JVM I was running (try java -version ).
You should try setting the attribute.indexed.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.