域启动报错，解决方法：vi /etc/hosts  本机ip 本机hostname。

<2015-4-30 上午10时03分10秒 CST> <Error> <Security> <BEA-090870> <The realm "myrealm" failed to be loaded: weblogic.security.service.SecurityServiceException: java.lang.ExceptionInInitializerError.

weblogic.security.service.SecurityServiceException: java.lang.ExceptionInInitializerError
at weblogic.security.service.CSSWLSDelegateImpl.initializeServiceEngine(CSSWLSDelegateImpl.java:341)
at weblogic.security.service.CSSWLSDelegateImpl.initialize(CSSWLSDelegateImpl.java:220)
at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.InitializeServiceEngine(CommonSecurityServiceManagerDelegateImpl.java:1812)
at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.initializeRealm(CommonSecurityServiceManagerDelegateImpl.java:447)
at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.loadRealm(CommonSecurityServiceManagerDelegateImpl.java:845)
Truncated. see log file for complete stacktrace
Caused By: java.lang.ExceptionInInitializerError
at com.octetstring.vde.util.guid.GuidGenerator.nextGuidInBytes(GuidGenerator.java:125)
at com.octetstring.vde.util.guid.Guid.<init>(Guid.java:84)
at com.octetstring.vde.backend.standard.BackendStandard.add(BackendStandard.java:378)
at com.octetstring.vde.backend.BackendHandler.add(BackendHandler.java:460)
at com.octetstring.vde.util.LDIF.importLDIF(LDIF.java:279)
Truncated. see log file for complete stacktrace
Caused By: java.lang.NullPointerException
at java.lang.System.arraycopy(Native Method)
at com.octetstring.vde.util.guid.GuidParamGenerator.generateNodeID(GuidParamGenerator.java:47)
at com.octetstring.vde.util.guid.GuidStateManager.initializeGUIDParameters(GuidStateManager.java:59)
at com.octetstring.vde.util.guid.GuidStateManager.<init>(GuidStateManager.java:30)
at com.octetstring.vde.util.guid.GuidStateManager.<clinit>(GuidStateManager.java:23)
Truncated. see log file for complete stacktrace
> 
<2015-4-30 上午10时03分10秒 CST> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.> 
<2015-4-30 上午10时03分10秒 CST> <Critical> <WebLogicServer> <BEA-000362> <Server failed. Reason: 

There are 1 nested errors:

weblogic.security.service.SecurityServiceRuntimeException: [Security:090399]Security services unavailable
at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.doBootAuthorization(CommonSecurityServiceManagerDelegateImpl.java:921)
at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.initialize(CommonSecurityServiceManagerDelegateImpl.java:1058)
at weblogic.security.service.SecurityServiceManager.initialize(SecurityServiceManager.java:873)
at weblogic.security.SecurityService.start(SecurityService.java:148)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:295)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:254)> 
<2015-4-30 上午10时03分10秒 CST> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FAILED.> 
<2015-4-30 上午10时03分10秒 CST> <Error> <WebLogicServer> <BEA-000383> <A critical service failed. The server will shut itself down.> 
<2015-4-30 上午10时03分10秒 CST> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN.> 
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