NULL pointer dereference when probing Java methods

[Tetsuo Handa]

Hello.

SystemTap allows probing Java methods with the aid of byteman
( https://developers.redhat.com/blog/2014/01/10/probing-java-w-systemtap/ ).
But is probing Java methods which have arguments of Java objects other than
String supported? The java process (from OpenJDK 1.7 in CentOS 7) crashes
with NULL pointer dereference inside HelperSDT.c if I try to probe such
Java methods. If it is a not-yet-known bug, I can provide steps to reproduce.

Regards.