Error with parameter JavaGateway

[cgaspero]

Hi guys: This is my first post!!
I had configure zabbix with this parameters

./configure --prefix=/zabbix --enable-server --enable-agent --with-postgresql --with-net-snmp --with-libcurl --enable-java --datadir=/zabbix --sysconfdir=/zabbix

Configuration:

  Detected OS:           linux-gnu
  Install path:          /zabbix
  Compilation arch:      linux

  Compiler:              gcc
  Compiler flags:        -g -O2    -I/usr/include     -I/usr/include/rpm -I/usr/local/include -I/usr/include/gdbm -I/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/CORE -I. -I/usr/include/net-snmp     

  Enable server:         yes
  Server details:
    With database:         PostgreSQL
    WEB Monitoring via:    cURL
    Native Jabber:         no
    SNMP:                  net-snmp
    IPMI:                  no
    SSH:                   no
    ODBC:                  no
    Linker flags:          -rdynamic       -L/usr/lib64    -L/usr/kerberos/lib64  -L/usr/lib64 -L/usr/lib64 -L/usr/lib64/lib  -L/usr/lib64 -L/usr/lib64 -L/usr/lib64/lib   
    Libraries:             -lm -lrt  -lresolv      -lpq    -lcurl -ldl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lidn -lssl -lcrypto -lz  -lnetsnmp -lcrypto -lm -lwrap -lcrypto  -lnetsnmp -lcrypto -lm -lwrap -lcrypto   

  Enable proxy:          no

  Enable agent:          yes
  Agent details:
    Linker flags:          -rdynamic     -L/usr/kerberos/lib64 
    Libraries:             -lm -lrt  -lresolv    -lcurl -ldl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lidn -lssl -lcrypto -lz 

  Enable Java gateway:   yes
  Java gateway details:
    Java compiler:         javac
    Java archiver:         jar

  LDAP support:          no
  IPv6 support:          no

***********************************************************
*            Now run 'make install'                       *
*                                                         *
*            Thank you for using Zabbix!                  *
*              <http://www.zabbix.com>                    *
***********************************************************

After that I change my zabbix_server.conf enabling the following parameters

JavaGateway=10.250.0.36
JavaGatewayPort=10052
StartJavaPollers=5

Then, I'd started startup.sh on /zabbix/sbin/zabbix_java/ and check in ps ax with tihs result:

java -server -classpath lib:lib/logback-classic-0.9.27.jar:lib/logback-core-0.9.27.jar:lib/org-json-2010-12-28.jar:lib/slf4j-api-1.6.1.jar:bin/zabbix-java-gateway-2.0.9.jar -Dzabbix.pidFile=/tmp/zabbix_java.pid -Dzabbix.listenPort=10052 com.zabbix.gateway.JavaGateway

And when I try to reload the zabbix_server.conf I receive this message:
zabbix_server [30081]: unknown parameter [JavaGateway] in config file [/zabbix/zabbix_server.conf], line 194

What is the problem??
Thanks in advance