Method invoke

src/com/sun/jna/Native.java:1316–1321

(Object proxy, Method method, Object[] args)

        final Library.Handler handler = (Library.Handler)ih;
        InvocationHandler newHandler = new InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                synchronized(handler.getNativeLibrary()) {
                    return handler.invoke(library, method, args);
                }
            }
        };
        return (Library)Proxy.newProxyInstance(cls.getClassLoader(),
                                               cls.getInterfaces(),