What is best practice to call `SymbolLookup.libraryLookup()` in cross-platform way?

[Daniel Lemire]

Maybe.,..

System.loadLibrary("mylib");

Google's AI says...


« The `System.loadLibrary` method in Java is used to load a native library specified by its name, without including the platform-specific prefix or file extension. This method searches for the library in the paths defined in the `java.library.path` system property. »

On Thu, Jan 29, 2026, at 10:13, Lev Serebryakov wrote:
> Hello!
> 
>   I wonder, is there best practices for `SymbolLookup.libraryLookup()`? 
> 
>   I mean, in POSIX-like systems it look in system directories and I can simply pass `"libname"` as argument. But on Windows it doesn't work even with `-Djava.library.path` which points do directory with `libname.dll`, looks like I need ".dll" to name.
> 
>   Check for OS via property "os.name" looks like bad solution: maybe, on other systems, which I'm not ware about, I need add other extension, and my code which check will fails!
> 
>   And I cannot understand what should I pass in MacOS. I've tried "name", "libname", "libname.dylib" — nothing works. Library file is "libname.dylib" in directory passed as `-Djava.library.path". 
> 
>   Is here better and future-proof way?
> 
>   I can copy code from JNA, but I don't like it very much, to be honest.
> 
> Thnak you.
> 
> -- 
> // Lev Serebryakov
> 
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