Doesn\'t java sdk\'s come with those kind of libraries for controlling the usb\'s?? I think its really essential that those kind of libraries are bundled with sdk\'s, especially at this age where we can connect almost any devices through a usb port...Don\'t you think??
I don't think it needs to be in the JDK. If libraries like the one Jesper mentioned are available, and can be shipped with an application that needs it, that should be sufficient. IMO, way too many APIs are part of the JDK already, and I don't see many Java applications that might use USB.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com