GC and JNI

Dear all,

Java supports JNI.  I would like to know how does Java's GC handle those 
objects created in the Java Native codes?  Do those objects can only be 
reclaimed conservatively?  Or they can be reclaimed precisely with 
compiler support?  Thanks very much!

Regards,
Zoe

-- 
Zoe C. H. Yu
Research Postgraduate
Department of Computer Science and Information Systems
The University of Hong Kong