org.directwebremoting.servlet.FileHandler.handle opens an input stream, but does not close it.
This needs to be fixed for the 2.0 branch as well. The streams 'in' and 'raw' need to be closed in FileHandler.handle.
Do you want me to fix it?
I had a look because I thought it was just a close not called in finally problem, but it was a close not called problem. I fixed it. I also found a similar problem in 3.
A colleague just verified in test that it is fixed now.