Android C/C++ native calls Java APIs
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There are lots of examples that Android C/C++ native calls Java APIs.
However, all of these examples I have read are the Android Java APIs call native
first and then the native calls other Java APIs by using the passed JNI-ENV.

Without the passed JNI-ENV, how can the C/C++ get it?
Is it possible that C/C++ native calls Java APIs  without JNI-ENV?

Can you give an example or a link for it if it is possible?

Thanks!