FULL PRODUCT VERSION :
java version  " 1.7.0_09 " 
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
MacOs 10.7.5

Darwin anchower.ssec.wisc.edu 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64

A DESCRIPTION OF THE PROBLEM :
I am using a Dell KVM (2162DS) that is configured for IPv6 only. I can login to the KVM via the web GUI in Safari or Firefox, but when I try to launch the Java KVM console app, I get an  " unable to launch the application "  error. When viewing the details, the wrapped exception shows: 'java.net.NoRouteToHostException: No route to host "  As I mentioned, the host is reachable (can login via Safari, Firefox; host is also pingable).

Note that this same Java applet works fine from within a Windows VM on my Mac. The problem is specific to the JRE on the Mac.

Similarly, http://ipv6-speedtest.net has an IPv6 speedtest that uses a java applet. This also does not work with Java on the Mac, but works fine in Windows (including Windows VM on my Mac)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Launch a Java web start application that requires an IPv6 connection.

Or, browse to http://ipv6-speedtest.net


REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Use Windows