java.awt.Font in JDK 1.5.0

Hi everybody!

Ive just update to jdk1.5.0 and recompiled my project. With jdk 1.4.03 everything works properly, but now, i get this error:

cannot access java.awt.Font,bad class file: C:\Archivos de programa\Java\j2re1.5.0\lib\rt.jar\java\awt\Font.class,class file has wrong version 49.0, should be 48.0,Please remove or make sure it appears in the correct subdirectory of the classpath. at line 3, column 17.

Does someone know why?

Thanks a lot

[489 byte] By [nardo12] at [2007-9-30 4:22:35]