jstatd: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/lib/debug/usr/lib/jvm/java-7-openjdk-amd64/bin/jstatd - from package: openjdk-7-dbg
/usr/lib/jvm/java-7-openjdk-amd64/bin/jstatd - from package: openjdk-7-jdk

You may install the required package with command apt-get install {package}
Error in other languages:
jstatd: bevel nie gevind nie
jstatd: comandă negăsită
jstatd: comando não encontrado
jstatd: commande introuvable
jstatd: command not found
jstatd: käsku ei ole
jstatd: không tìm thấy lệnh
jstatd: komanda nerasta
jstatd: Kommando nicht gefunden.
jstatd: kommandot finns inte
jstatd: komut yok
jstatd: nie znaleziono polecenia
jstatd: níor aimsíodh an t-ordú
jstatd: no se encontró la orden
jstatd: no s'ha trobat l'ordre
jstatd: opdracht niet gevonden
jstatd: parancs nem található
jstatd: perintah tidak ditemukan
jstatd: príkaz nenájdený
jstatd: příkaz nenalezen
jstatd: команда не найдена
jstatd: командата не е открита
jstatd: 命令找不到
jstatd: コマンドが見つかりません