Java Error in 389-Console

I am a newbie at Java and Fedora and would appreciate some help... I have installed 389-DS and I attempt to start the console and receive the following error:

[1]+ Exit 127 389-consol -x nologo
-bash-4.1$ 389-console -x nologo &
[1] 22686
-bash-4.1$ Exception in thread "main" java.lang.UnsupportedClassVersionError: org/mozilla/jss/crypto/AlreadyInitializedException : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :634)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:277)
at java.net.URLClassLoader.access$000(URLClassLoader. java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 21)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 66)
at com.netscape.management.client.console.Console.<in it>(Unknown Source)
at com.netscape.management.client.console.Console.mai n(Unknown Source)

[1]+ Exit 1 389-console -x nologo

java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.9) (amazon-57.1.11.9.52.amzn1-x86_64)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)