Command line arguments to the Java launcher are no longer converted with [Windows' "best-fit" mapping](https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-ucoderef/d1980631-6401-428e-a49d-d71394be7da8) when the arguments include unmappable characters for the ANSI code page. This mapping has been intervening in the Java launcher's argument parsing. Unmappable characters are now replaced with the default replacement character, such as '?' in some cases. For rare cases, where applications need those unmappable characters on the command line, select UTF-8 in Windows Regional Settings.