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java.lang.reflect.UndeclaredThrowableException: 	at undefined.$Proxy0.getAuthenticationProviders(Unknown Source)	at weblogic.security.internal.RealmValidatorImpl.checkAuthenticationProviders(RealmValidatorImpl.java:69)	at weblogic.security.internal.RealmValidatorImpl.validate(RealmValidatorImpl.java:54)	at weblogic.management.security.RealmImpl.validate(RealmImpl.java:37)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1304)