> does chroot command exist in ant script language? No. chroot is a low-level unix system command. But Java can be "sandboxed" using security policies: http://java.sun.com/j2se/1.4.2/docs/guide/security/PolicyFiles.html Also, Jan pointed you to , a nested element of , which could perhaps be used to revoke write-access to some parts of the filesystem. In any event, it's probably non trivial to setup... --DD --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@ant.apache.org For additional commands, e-mail: user-help@ant.apache.org