I also have the same problem at FC7, jdk1.6.0_04, Athlon X2_64. Possibly this a problem of Fedora only ? But how to fix this ? I don't familiar with java :^( Please help.
Here my error output:
============
[root@maze plarpebu]# ant compile
Buildfile: build.xml
init:
compile:
[javac] Compiling 3 source files to /root/DOP/t/plarpebu/build/classes.player
[javac] ----------.
2008-02-03 13:06:37 UTC in Plarpebu a java karaoke player