The jsf/ClientSideSecretKey JNDI name has been renamed to faces/ClientSideSecretKey,
and the jsf/FlashSecretKey JNDI name has been renamed to faces/FlashSecretKey.
Update the JNDI name in the environment entry to continue using these keys.
For more Jakarta 10 migration information, see Differences between Jakarta Faces 4.0 and 3.0.