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How to Make a Classloader evaluate the classpath before initlializing static objects?
private static void load_libraries() {
    try {
        String osname = getOSName();

        if (osname == null) {
            throw new RuntimeException("The system you are running on is not supported");
        }
        URL u = NativeLibs.class.getResource(osname);

        URLClassLoader urlClassLoader = (URLClassLoader) ClassLoader.getSystemClassLoader();
        Class urlClass = URLClassLoader.class;
        Method method = urlClass.getDeclaredMethod("addURL", new Class[]{URL.class});
        method.setAccessible(true);
        method.invoke(urlClassLoader, new Object[]{u});
    } catch (IllegalAccessException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "Failed to load native libs", ex);
    } catch (IllegalArgumentException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "Failed to load native libs", ex);
    } catch (InvocationTargetException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "Failed to load native libs", ex);
    } catch (NoSuchMethodException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "Failed to load native libs", ex);
    } catch (SecurityException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "Failed to load native libs", ex);
    }

}

private static String getOSName() {
    String os = System.getProperty("os.name").toLowerCase(Locale.US);
    if (os.indexOf("win") >= 0) {
        return "windows";
    } else if (os.indexOf("mac os x") >= 0) {
        return "macosx";
    } else if (os.indexOf("nux") >= 0) {
        return "linux";
    } else if (os.indexOf("solaris") >= 0) {
        return "solaris";
    } else {
        return null;
    }
}