Java PCAP file parser library

Just stumbled upon pcap parsing task in Java and found a pcap parser in Kaitai Struct. Surprisingly, it turns out to be blazing fast — probably because it's not a wrapper over C pcap library, but just a raw parser instead. My average results (on the same box, of course) are as following:

• jpcap - 10,301 pps
• jnetpcap - 15,148 pps
• pcap.ksy in Kaitai Struct - 121,176 pps

So, if you don't need capturing, I wholeheartedly recommend trying out Kaitai Struct parser.

jNetPcap is the most stable and well written wrapper. Its better than JPcap see this for comparison details. And i don't have a comparison details for pcap4j to evaluate.