Weblogic Server startup problem after password change

When you change the password of weblogic in console and restart, you might endup with the following error - due to the fact that the new password might not sync in all the places

<21-Feb-2014 11:58:22 o'clock GMT> <Critical> <WebLogicServer> <BEA-000386> <Server subsystem failed. Reason: weblogic.security.SecurityInitializationException: Authentication denied: Boot identity not valid; The user name and/or password from the boot identity file (boot.properties) is not valid. The boot identity may have been changed since the boot identity file was created. Please edit and update the boot identity file with the proper values of username and password. The first time the updated boot identity file is used to start the server, these new values are encrypted.

weblogic.security.SecurityInitializationException: Authentication denied: Boot identity not valid; The user name and/or password from the boot identity file (boot.properties) is not valid. The boot identity may have been changed since the boot identity file was created. Please edit and update the boot identity file with the proper values of username and password. The first time the updated boot identity file is used to start the server, these new values are encrypted.

at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.doBootAuthorization(CommonSecurityServiceManagerDelegateImpl.java:960)

at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.initialize(CommonSecurityServiceManagerDelegateImpl.java:1054)

at weblogic.security.service.SecurityServiceManager.initialize(SecurityServiceManager.java:873)

at weblogic.security.SecurityService.start(SecurityService.java:141)

at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)

at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)

at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

Caused By: javax.security.auth.login.FailedLoginException: [Security:090304]Authentication Failed: User weblogic javax.security.auth.login.FailedLoginException: [Security:090302]Authentication Failed: User weblogic denied

at weblogic.security.providers.authentication.LDAPAtnLoginModuleImpl.login(LDAPAtnLoginModuleImpl.java:261)

...

at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)

at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

>

<21-Feb-2014 11:58:22 o'clock GMT> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FAILED>

<21-Feb-2014 11:58:22 o'clock GMT> <Error> <WebLogicServer> <BEA-000383> <A critical service failed. The server will shut itself down>

<21-Feb-2014 11:58:22 o'clock GMT> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN>

<21-Feb-2014 11:58:22 o'clock GMT> <Info> <WebLogicServer> <BEA-000236> <Stopping execute threads.> 

For this,
Navigate to /oracle/fmwhome/user_projects/domains/dev_soa_osb/servers/AdminServer/data

Remove complete ldap folder

Remove boot.properties in /oracle/fmwhome/user_projects/domains/dev_soa_osb/servers/AdminServer/security

Restart