java.lang.IllegalAccessError
Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to. Normally, this error is caught by the compiler; this error can only occur at run time if the definition of a class has incompatibly changed.(ref.)
... identifying the class in the Extensions and adjusting/removing the corresponding .jar should help. Anyways, don't understand why packing dependencies within the same jar as the actual one of a library.
Fedora - replace NetworkManager with netwok init script
chkconfig NetworkManager off chkconfig –levels 35 network on /etc/init.d/network restart
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