server fails to startup

[Jung Yang]

I am using WLS7 SP1. Just migrated from WLS6.0.

Thanks in advance.

I get following exception. I was trying to configure new security realm.
And when I rebooted the WLS, it started giving me this:

####<Nov 12, 2002 8:21:57 PM EST> <Emergency> <WebLogicServer> <test2>
<test2Server> <main> <kernel identity> <> <000342>
<Unable to initialize the server: Fatal initialization exception
Throwable: weblogic.management.configuration.ConfigurationError: Invalid
configuration - found multiple default realms
weblogic.management.configuration.ConfigurationError: Invalid
configuration - found multiple default realms
at
weblogic.management.mbeans.custom.SecurityConfiguration.findDefaultRealm(Sec
urityConfiguration.java:108)
at java.lang.reflect.Method.invoke(Native Method)
at
weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl
.java:732)
at
weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:7
14)
at
weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBea
nImpl.java:417)
at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at
weblogic.management.internal.RemoteMBeanServerImpl.invoke(RemoteMBeanServerI
mpl.java:926)
at
weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:470)
at
weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:198)
at $Proxy59.findDefaultRealm(Unknown Source)
at
weblogic.management.configuration.SecurityConfigurationMBean_CachingStub.fin
dDefaultRealm(SecurityConfiguration
MBean_CachingStub.java:547)
at
weblogic.security.service.SecurityServiceManager.getDefaultRealm(SecuritySer
viceManager.java:1213)
at
weblogic.security.service.SecurityServiceManager.initializeRealms(SecuritySe
rviceManager.java:1425)
at
weblogic.security.service.SecurityServiceManager.initialize(SecurityServiceM
anager.java:1157)
at weblogic.t3.srvr.T3Srvr.initialize1(T3Srvr.java:697)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:589)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:277)
at weblogic.Server.main(Server.java:32)