HermesJMS throws an error with tibco ems 7.0.1

I am attempting to set up an ems session from hermes jms in soapui pro 5.0.0, this is failing with java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.beans.BeanGenerator as follows:

java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.beans.BeanGenerator
at hermes.util.ReflectUtils.mixinGetterMethodsAndInstantiate(ReflectUtils.java:164)
at hermes.util.ReflectUtils.createConnectionFactory(ReflectUtils.java:215)
at hermes.browser.dialog.ConnectionFactoryConfigPanel$4.contentsChanged(ConnectionFactoryConfigPanel.java:232)
at javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)
at javax.swing.DefaultComboBoxModel.setSelectedItem(Unknown Source)
at javax.swing.DefaultComboBoxModel.addElement(Unknown Source)
at hermes.browser.dialog.ConnectionFactoryConfigPanel.updateConectionFactories(ConnectionFactoryConfigPanel.java:286)
at hermes.browser.dialog.ConnectionFactoryConfigPanel.setFactoryConfig(ConnectionFactoryConfigPanel.java:341)
at hermes.browser.dialog.PreferencesDialog.init(PreferencesDialog.java:169)
at hermes.swing.actions.CreateNewSessionAction.actionPerformed(CreateNewSessionAction.java:58)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)

I am following the instructions herehttp://tibcoadmin.com/?s=hermesjms, on the step where I select the connection factory this exception is thrown, I then can't add properties, discover queues etc.