This Heads-Up is part of the regular communication sent to the projects involved, it covers JEP 472's preparation of restricted access to native code through JNI and the FFM API.

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JDK 24 introduces restricted native access to improve integrity by requiring explicit approval for operations between Java and native code. Warnings will be issued for restricted operations, with plans to turn these into exceptions in the future. Developers can enable or disable these operations using new command-line options. A new tool, jnativescan, can help identify libraries using restricted methods.

JDK 24 Prepares Restricted Native Access – Inside.java