Mac OS X firewall and Java.

Hello,
1) I am using the built in firewall 10.5.8, and I was wondering what functionality I will lose if I select "Block Incoming Connections" for "java".
2) If "Block Incoming Connections" is selected, for a specific program (java), does that mean that the program (java) will not respond to connections that the program itself opens? I guess I am asking if the software firewall is a NAT/SPI based firewall.
3) The icon to the left of "java" looks weird to me. Is is everyone else seeing the same icon? Here is a link to the image: http://gallery.me.com/zap1313#100057/firewall&bgcolor=black
Thanks

1) I am using the built in firewall 10.5.8, and I was wondering what functionality I will lose if I select "Block Incoming Connections" for "java".
That depends on what Java applications you're running.
2) If "Block Incoming Connections" is selected, for a specific program (java), does that mean that the program (java) will not respond to connections that the program itself opens?
It has no effect on outgoing connections initiated by the application.
3) The icon to the left of "java" looks weird to me. Is is everyone else seeing the same icon? Here is a link to the image: http://gallery.me.com/zap1313#100057/firewall&bgcolor=black
The icon looks normal to me. Java isn't a typical double-clickable application, so it appears as the generic console application icon.

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