A problem with Java based applications is the hugh memory amount required to run the scanner. Tested were diffeent settings of the maximum memory allocation pool using the commandline option -Xmx.

Mode	1	10	100	1000	10000	Memory (Mb)
java	0.14	0.256	0.453	1.708	15.500	788
java -Xmx16m	0.174	0.260	0.436	1.728	15.598	290
java -Xmx32m	0.175	0.255	0.457	1.713	15.576	308
java -Xmx64m	0.175	0.254	0.456	1.713	15.460	339
java -Xmx128m	0.156	0.255	0.441	1.708	15.607	404
java -Xmx256	0.156	0.253	0.421	1.714	15.520	532
java -Xmx512	0.155	0.253	0.456	1.709	15.507	795