In Ubuntu 14.04, the provided autojump does not allow to choose between several matches because of a bug. How to fix that (as suggested in the bug report):

• download a recent version, unzip, do «bash install.sh» and update your .bashrc to point on this install
• in ~/.autojump/etc/profile.d/autojump.bash, remove the argument «–bash» (twice)

comps=$(autojump --bash --complete $cur)