Getting the `UnexpectedNativeException` despite adding the .so file to JNA path

Hello, I have a Spring-Boot module (specifically, it trains a KNN model) where we leverage this library. When I tried deploying the jar file on a Linux system, I started getting the UnexpectedNativeException. I then followed the steps in your README, compiled the .so file, and attempted loading it as

java -Djna.debug_load=true -Djna.library.path=/root/hnswlib-jna/lib -jar -Dspring.profiles.active=
default my-application.jar "2022-01-01" "2022-01-10"

However, the exception was still thrown:

...
Sep 22, 2023 8:18:03 AM com.sun.jna.Native extractFromResourcePath
INFO: Looking in classpath from org.springframework.boot.loader.LaunchedURLClassLoader@46f7f36a for /com/sun/jna/linux-x86-64/libjnidispatch.so
Sep 22, 2023 8:18:03 AM com.sun.jna.Native extractFromResourcePath
INFO: Found library resource at jar:file:/root/vessel-movement-training/vessel-movement-training-1.0.0.jar!/BOOT-INF/lib/jna-5.5.0.jar!/com/sun/jna/linux-x86-64/libjnidispatch.so
Sep 22, 2023 8:18:03 AM com.sun.jna.Native extractFromResourcePath
INFO: Extracting library to /root/.cache/JNA/temp/jna5135192293771266151.tmp
Sep 22, 2023 8:18:03 AM com.sun.jna.NativeLibrary loadLibrary
INFO: Looking for library 'hnswlib-jna-x86-64'
Sep 22, 2023 8:18:03 AM com.sun.jna.NativeLibrary loadLibrary
INFO: Adding paths from jna.library.path: /root/hnswlib-jna/lib
Sep 22, 2023 8:18:03 AM com.sun.jna.NativeLibrary loadLibrary
INFO: Trying /root/hnswlib-jna/lib/libhnswlib-jna-x86-64.so
Sep 22, 2023 8:18:03 AM com.sun.jna.NativeLibrary loadLibrary
INFO: Found library 'hnswlib-jna-x86-64' at /root/hnswlib-jna/lib/libhnswlib-jna-x86-64.so
2023-09-22 08:18:05.973  INFO 20810 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2023-09-22 08:18:05.990 ERROR 20810 --- [           main] o.s.b.SpringApplication                  : Application run failed

java.lang.IllegalStateException: Failed to execute CommandLineRunner
        at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:772) [spring-boot-2.6.3.jar!/:2.6.3]
        at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:753) [spring-boot-2.6.3.jar!/:2.6.3]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:309) [spring-boot-2.6.3.jar!/:2.6.3]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.6.3.jar!/:2.6.3]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.6.3.jar!/:2.6.3]
        at com.mpa.vesselmovement.main.Application.main(Application.java:32) [classes!/:1.0.0]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) [vessel-movement-training-1.0.0.jar:1.0.0]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) [vessel-movement-training-1.0.0.jar:1.0.0]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) [vessel-movement-training-1.0.0.jar:1.0.0]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) [vessel-movement-training-1.0.0.jar:1.0.0]
Caused by: com.stepstone.search.hnswlib.jna.exception.UnexpectedNativeException
        at com.stepstone.search.hnswlib.jna.Index.checkResultCode(Index.java:294) ~[hnswlib-jsn-1.4.0.jar!/:?]
        at com.stepstone.search.hnswlib.jna.Index.initialize(Index.java:94) ~[hnswlib-jsn-1.4.0.jar!/:?]
...

I have tried compiling the *.so file using clang-12, 14, and 16 and the host is running kernel 4.18 (if it matters). Could you please help me narrow down this issue as this is blocking some key production deployments?

stepstone-tech / hnswlib-jna

Getting the `UnexpectedNativeException` despite adding the .so file to JNA path #14