IPv6 dual stack host

Hi folks
I'm running serviio (1.0.1) on a Fedora linux box which is dual stack ipv4/ipv6 enabled (decent ISP
However serviio only binds to the ipv4 address
[root@mythic ~]# netstat -pant | grep java
tcp 0 0 192.168.1.251:44331 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:8895 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:23423 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:23424 0.0.0.0:* LISTEN 13858/java
I know the startup script has
JAVA_OPTS="-Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dderby.system.home=$SERVIIO_HOME/library -Dserviio.home=$SERVIIO_HOME"
but is removing the java.net.preferIPv4Stack=true define all I need to do?
will it then bind to both 0.0.0.0 and :: ?
Many thanks
Andrew
I'm running serviio (1.0.1) on a Fedora linux box which is dual stack ipv4/ipv6 enabled (decent ISP

However serviio only binds to the ipv4 address
[root@mythic ~]# netstat -pant | grep java
tcp 0 0 192.168.1.251:44331 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:8895 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:23423 0.0.0.0:* LISTEN 13858/java
tcp 0 0 0.0.0.0:23424 0.0.0.0:* LISTEN 13858/java
I know the startup script has
JAVA_OPTS="-Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dderby.system.home=$SERVIIO_HOME/library -Dserviio.home=$SERVIIO_HOME"
but is removing the java.net.preferIPv4Stack=true define all I need to do?
will it then bind to both 0.0.0.0 and :: ?
Many thanks
Andrew