Debug shared library

[Schifanella Rossano]

Hi,
I wrote a simple Java application and I use JNI for implementing native 
code written in C. I created a shared library and I load it from a Java 
class. How I can debug my shared library in such context?  More 
generally speaking, how I can debug a shared library (loaded by a 
program not written in C) ?

Thanks in advance
Rossano S.