JNI Memory Leak?

I cannot answer your question specifically. However, my experience with JNI is that it does a lot of things internally that can confuse valgrind. If the point at which the memory is being lost is inside JNI there wouldn't be a lot you could do about it, anyway.

However, it's still a pain in the proverbial, since the number of different suppression needed to give you a clean run is likely to be enormous (hundreds).

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