WARNING: Opening of wallet based credential store failed. Reason java.io.IOExcep
ootstrap\cwallet.sso (Access is denied)
Oct 19, 2011 6:20:12 PM oracle.security.jps.internal.keystore.file.FileKeyStoreM
WARNING: Opening of file based farm keystore failed.
cwallet.sso failed even after changes made to cwallet security properties in bootstrap
The user you logged in does not have permissions to access cwallet.sso file and hence, it says access denied. Try to check the permissions and add the user, who is trying to start weblogic server.