G-WAN: adding .jar application to CLASSPATH: "try catch not catching exception"

Question

I'm trying to use to G-WAN webserver. So I added a ".jar" application to CLASSPATH in order to call it from java servlet. The code is running, but it is unable to catch the exception, and the application crashes. Below you can find the output:

'import site' failed; use -v for traceback
ptrace: Operation not permitted.
No frame selected.



Signal        : 11:Address not mapped to object
Signal src    : 1:.
errno         : 0
Thread        : 2
Code   Pointer: 7f22eda66ac7 module:libjvm.so function:Arena::set_size_in_bytes(unsigned long) line:0
Access Address: 000000000020

Answer 1

Can you confirm if G-WAN Java examples were running fine in the first place (even with exception handling)?

If so, your loaded .jar is the place to start with - or maybe the way the JVM loaded it from G-WAN's servlet.

That's clearly a JVM class loader issue but investigating it would require using your exact same .jar and settings, and digging into JVM internals.