JDK SocketChannel中的方法无法watch

[gollon]

• 我已经在 issues 里搜索，没有重复的issue。

环境信息

• arthas-boot.jar 或者 as.sh 的版本： 3.1.1
• Arthas 版本: 3.1.1
• 操作系统版本: linux 2.6.32-504.el6.x86_64
• 目标进程的JVM版本: jdk1.7 23.1-b03 Java HotSpot(TM) 64-Bit Server VM
• 执行arthas-boot的版本: 3.1.1

重现问题的步骤

watch sun.nio.ch.SocketChannelImpl connect '{params,throwExp}' -e -x 3

期望的结果

正常监控SocketChannelImpl 中的 open，connect等方法

实际运行的结果

$ watch sun.nio.ch.SocketChannelImpl connect '{params,throwExp}' -e -x 3
No class or method is affected, try:

1. sm CLASS_NAME METHOD_NAME to make sure the method you are tracing actually exists (it might be in your parent class).
2. reset CLASS_NAME and try again, your method body might be too large.
3. check arthas log: /root/logs/arthas/arthas.log
4. visit No class or method is affected/Trace, watch等命令无法找到对应的类和方法 #47 for more details.

arthas.log 中没有异常信息

[hengyunabc]

options 有一个 unsafe开关要打开

[gollon]

thanks

[MZLCC]

thanks
怎么打开个unsafe开关