NullPointerException windows

[Patrick]

Hello,

I'm using avian as a dll (compiled with cygwin) for a project (compiled Visual Studio Express 2015). 

I'm trying to capture NullPointerExceptions and log the stack trace, but the program crashes instead. All other exceptions work fine. 

I've read through https://groups.google.com/forum/#!msg/avian/GoutPJOk65I/9t1nPBg6BAAJ but still can't come up with a fix.

Is there any way to properly get the exception description rather having the program crash in windows?

Thanks,

Patrick

[patrick...@byte4byte.com]

Ok got it. It was because it was being run in the debugger.

Also setting the mode to interpret allows me to run from the debugger without crashing.

[Joel Dice .]

Ah, that explains it. Yes, the debugger will always trap the access
violation before the VM gets a chance to handle it. The way the VM
handles null dereferences is to install an OS-level handler using
AddVectoredExceptionHandler so it can turn the access violation into a
Java-level exception. The debugger steps in before the VM's handler
gets a chance, and unless the debugger gives you a way resume
execution and allow the VM's handler to run (GDB lets you do that, I
don't know about Windows debuggers), the program will crash.

Glad you figured it out.

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