| CombiningClass | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| Composition | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| DecompositionKeys | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| DecompositionMappings | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| IDNA | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| IDNAException | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| NFKC | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| Punycode | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| PunycodeException | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| RFC3454 | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
| Stringprep | This class offers static methods for preparing internationalized
strings. |
| StringprepException | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |