I\'m dealing with code that does various IO operations with files, and I want to make it able to deal with international filenames. I\'m working on a Mac with Java 1.5, and
This turned out to be a problem with the Mac JVM (tested on 1.5 and 1.6). Filenames containing supplementary characters / surrogate pairs cannot be accessed with the Java File class. I ended up writing a JNI library with Carbon calls for the Mac version of the project (ick). I suspect the CESU-8 issue bobince mentioned, as the JNI call to get UTF-8 characters returned a CESU-8 string. Doesn't look like it's something you can really get around.