Teran Jesus writes: > Hello, I am using the java for a provisioning system and when i > execute my program i get the next error, i have the > libgcj-3.4.6-3.1 version, if i put an older version libgcj-3.2.2-5, > the error doesn't appears, do you know what do i need with the new > version to my program runs? You need gcj Version 4.3 (not yet released) to run Java 1.5 code which uses java.lang.StringBuilder. Alternatively, if you're running on Fedora there's a new test RPM at http://download.fedoraproject.org/pub/fedora/linux/core/development/x86_64/os/Fedora/libgcj-4.1.2-4.x86_64.rpm http://download.fedoraproject.org/pub/fedora/linux/core/development/x86_64/os/Fedora/libgcj-4.1.2-4.i386.rpm Andrew.