A DESCRIPTION OF THE PROBLEM :
There is a typo on the line:
An application is registered to a URI or file type; for example, the "sxi" file extension is typically registered to StarOffice. The mechanism of registereing, accessing, and launching the associated application is platform-dependent.

Registereing should read registering


URL OF FAULTY DOCUMENTATION :
http://java.sun.com/javase/6/docs/api/java/awt/Desktop.html