"AsyncGetCallTrace is unsupported and often crashes the JVM. Profilers are removing AsyncGetCallTrace and implementing their own stack walking mechanisms. This actually gives more information with greater stability, so is better in every way"
"Async-profiler can help identify native memory leaks (memory outside the Java heap) using its `nativemem` event, enabled at runtime without JVM startup options. The `nativemem` event instruments `malloc` and related calls, providing a flame graph of allocations from JVM code, application code, and third-party libraries, and can distinguish between allocated and freed native memory"