uwsgi_jvm_openjdk7: command not found

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/bin/uwsgi_jvm_openjdk7 - from package: uwsgi-plugin-jvm-openjdk-7

You may install the required package with command apt-get install {package}

Error in other languages:
uwsgi_jvm_openjdk7: bevel nie gevind nie
uwsgi_jvm_openjdk7: comandă negăsită
uwsgi_jvm_openjdk7: comando não encontrado
uwsgi_jvm_openjdk7: commande introuvable
uwsgi_jvm_openjdk7: command not found
uwsgi_jvm_openjdk7: käsku ei ole
uwsgi_jvm_openjdk7: không tìm thấy lệnh
uwsgi_jvm_openjdk7: komanda nerasta
uwsgi_jvm_openjdk7: Kommando nicht gefunden.
uwsgi_jvm_openjdk7: kommandot finns inte
uwsgi_jvm_openjdk7: komut yok
uwsgi_jvm_openjdk7: nie znaleziono polecenia
uwsgi_jvm_openjdk7: níor aimsíodh an t-ordú
uwsgi_jvm_openjdk7: no se encontró la orden
uwsgi_jvm_openjdk7: no s'ha trobat l'ordre
uwsgi_jvm_openjdk7: opdracht niet gevonden
uwsgi_jvm_openjdk7: parancs nem található
uwsgi_jvm_openjdk7: perintah tidak ditemukan
uwsgi_jvm_openjdk7: príkaz nenájdený
uwsgi_jvm_openjdk7: příkaz nenalezen
uwsgi_jvm_openjdk7: команда не найдена
uwsgi_jvm_openjdk7: командата не е открита
uwsgi_jvm_openjdk7: 命令找不到
uwsgi_jvm_openjdk7: コマンドが見つかりません