Problème :

Compilation d’un programme java version 1.4 version une version 1.6

~/jeux/archeo_francais$ javac *.java
arc.java:285: warning: unmappable character for encoding UTF8
                        msg1="Erreur de chargement des donn�es!";
                                                           ^
arc.java:533: warning: unmappable character for encoding UTF8
                                                                msg1="Vous �tes affam�...";
                                                                           ^

Solution :

~/jeux/archeo_francais$ javac *.java -source 1.4 -target 1.6 -encoding 8859_1

Lien :

http://www.ghosthack.com/2005/09/warning-unmappable-character-for.html