text: public OpenNLPChunkerFilter create(TokenStream in) {try {NLPChunkerOp chunkerOp = null;if (chunkerModelFile != null) {chunkerOp = OpenNLPOpsFactory.getChunker(chunkerModelFile);}return new OpenNLPChunkerFilter(in, chunkerOp);} catch (IOException e) {throw new IllegalArgumentException(e);}}