Maybe it's nothing, but given the code looking feel to it, it might create some kind of problem. Around line 260 an "idle" is spelled "ilde".
checkIncorrectIdle: "inkorrekt stängning av ${1} #${2}, ilde=${3}, planningelement.idle=${4}, assignment.idle=${5}",
checkIncorrectIdle: "inkorrekt stängning av ${1} #${2}, ilde=${3}, planningelement.idle=${4}, assignment.idle=${5}",