Developement has been stopped, please use https://github.com/ardikars/pcap instead.
Jxnet is a Java library for capturing and sending custom network packet buffers with no copies. Jxnet wraps a native packet capture library (libpcap/npcap) via JNI (Java Native Interface).
GNU Lesser General Public License, Version 3
/**
* Copyright (C) 2015-2018 Jxnet
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/