Fedora directory users - Oct 2007 - error loading startconsole

Greetings.
After of installation and configuration of fedora-ds, i have errors
loading the console, here the log:

[root@ds1 fedora-ds]# ./startconsole -u admin http://ds1.foo.com:9999/

Exception in thread "main" java.lang.UnsupportedClassVersionError:
com/netscape/management/client/console/Console (Unsupported
major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)


i have the last sun jre.

-- 
jhon choptieso