Java.library.path setting programmatically

I'm just quoting from the link provided by secmask (https://cedarsoft.com/blog.html), in case the link goes dead:

Changing the system property java.library.path later doesn’t have any effect, since the property is evaluated very early and cached. But the guys over at jdic discovered a way how to work around it. It is a little bit dirty – but hey, those hacks are the reason we all love Java.

System.setProperty("java.library.path", "/path/to/libs");
Field fieldSysPath = ClassLoader.class.getDeclaredField("sys_paths");
fieldSysPath.setAccessible(true);
fieldSysPath.set(null, null);

Explanation:

At first the system property is updated with the new value. This might be a relative path – or maybe you want to create that path dynamically. The Classloader has a static field (sys_paths) that contains the paths. If that field is set to null, it is initialized automatically.Therefore forcing that field to null will result into the reevaluation of the library path as soon as loadLibrary() is called.