Getting errors while trying to save the configured servers and clusters created after new PSU2 appli

These are the errors we are getting after installing the new PSU2 for weblogic server 12.1.10:

Saving all your changes ...

WLST-WLS-1351611816529: <Oct 30, 2012 10:44:42 AM CDT> <Warning> <RMI> <BEA-080003> <A RuntimeException was generated by the RMI server: javax.management.remote.rmi.RMIConnectionImpl.invoke(Ljavax.management.ObjectName;Ljava.lang.String;Ljava.rmi.MarshalledObject;[Ljava.lang.String;Ljavax.security.auth.Subject;)

WLST-WLS-1351611816529:  javax.management.RuntimeMBeanException: java.lang.RuntimeException: weblogic.management.provider.EditSaveChangesFailedException: .

WLST-WLS-1351611816529: javax.management.RuntimeMBeanException: java.lang.RuntimeException: weblogic.management.provider.EditSaveChangesFailedException:

WLST-WLS-1351611816529:         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:851)

WLST-WLS-1351611816529:         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:864)

WLST-WLS-1351611816529:         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:833)