The Mac OS Runtime for Java (MRJ) version 2.1 Installer installs the North American English version of the Text Encoding Converter 1.4.2 extension and its associated text encodings. The MRJ 2.1 installer is programmed to replace older versions of these same files. However, on computers running localized versions of the Mac OS, the names of the existing Text Encoding Converter and associated text encodings have been localized as well. On these computers, the North American English MRJ Installer cannot recognize the older files, and does not install the newer Text Encoding software. A localized MRJ 2.1 installer is expected to be available in a future release of the Mac OS.
If your computer is running a localized version of the Mac OS with Text Encoding Converter extension 1.3 or later installed, MRJ 2.1 works but may experience some text handling errors.
If you have an earlier version of the Text Encoding software installed (previous to version 1.3), an alert message appears during installation to indicate that your system software must be updated before MRJ can be installed.