JpCapWriter崩溃JVM

Question

当我尝试使用JpCap Writer将数据包保存到文件时，会导致JVM崩溃。

代码：

captor=JpcapCaptor.openDevice(interfaceList[interfaceNumber], 65535, true, 20); 
captor.setFilter("ip and tcp",true); 


JpcapWriter writer=JpcapWriter.openDumpFile(captor,"write.txt"); 
for(int i=0;i<10;i++){ 
    Packet packet=captor.getPacket(); 
    writer.writePacket(packet); 
    } 
writer.close(); 

崩溃信息：

# 
# A fatal error has been detected by the Java Runtime Environment: 
# 
# SIGSEGV (0xb) at pc=0x00007f283105953a, pid=3060, tid=139810797537024 
# 
# JRE version: 6.0_24-b24 
# Java VM: OpenJDK 64-Bit Server VM (20.0-b12 mixed mode linux-amd64 compressed oops) 
# Derivative: IcedTea6 1.11.4 
# Distribution: Ubuntu 12.04 LTS, package 6b24-1.11.4-1ubuntu0.12.04.1 
# Problematic frame: 
# v ~BufferBlob::jni_fast_GetLongField 
# 
# An error report file with more information is saved as: 
# /root/workspace/Sniff/hs_err_pid3060.log 
# 
# If you would like to submit a bug report, please include 
# instructions how to reproduce the bug and visit: 
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/ 
# The crash happened outside the Java Virtual Machine in native code. 
# See problematic frame for where to report the bug. 
# 

任何想法如何解决呢？或者任何其他的替代方式来保存TCPDump格式的数据包？

Answer 1

我看到了你对我的问题的评论。我有这个相同的问题，这是我在试图关闭作家之后关闭它的原因。你可能会在不知不觉中关闭它。检查您的代码，并查看删除writer.close();对您有什么影响。

如果你不需要操纵数据包，我会推荐使用Wireshark。它可以很容易地将数据包捕获为TCPDump并添加捕获过滤器。