fixed Java warnings
fixed Java warnings

One warning remains about call to deprecated code.
zangsir/ANNIS,amir-zeldes/ANNIS,pixeldrama/ANNIS,zangsir/ANNIS,zangsir/ANNIS,zangsir/ANNIS,pixeldrama/ANNIS,thomaskrause/ANNIS,zangsir/ANNIS,amir-zeldes/ANNIS,amir-zeldes/ANNIS,pixeldrama/ANNIS,zangsir/ANNIS,amir-zeldes/ANNIS,korpling/ANNIS,thomaskrause/ANNIS,amir-zeldes/ANNIS,thomaskrause/ANNIS,korpling/ANNIS,thomaskrause/ANNIS,pixeldrama/ANNIS,korpling/ANNIS,pixeldrama/ANNIS,korpling/ANNIS,korpling/ANNIS,pixeldrama/ANNIS,thomaskrause/ANNIS,amir-zeldes/ANNIS