Java -> SQL connection

Hi List, I think its a problem of the 64bit architecture. Because I can connect to my MYSQL server via php at this 64 bit PC and the little connection-program I wrote in JAVA works perfect at my second 32Bit-PC but not with my 64Bit-PC. Did anybody connect successfully to an mysql DB with JAVA and a 64 bit computer? I attached my little program. Maybe someone can test also - maybe I made a mistake at programming ...??? tia OLI