Java gateway is displaying this error when starts:

• Starting Zabbix java gateway zabbix_java_gateway
  start-stop-daemon: --start needs --exec or --startas
  Try 'start-stop-daemon --help' for more information.

To solve the problem, I've changed the script:

from:
start-stop-daemon --start -b -m -u zabbix -g zabbix -c zabbix -p $PID_FILE – $DAEMON_ARGS

to:
start-stop-daemon --oknodo --start -m --pidfile $PID_FILE --background --verbose --exec $JAVA – $DAEMON_ARGS