Add the given messages to a cache stored in this Context, under key.

Using this ActionContext's default ModuleConfig, return an existing ActionForm in the specified scope, or create a new one and add it to the specified scope.

In the context of the given ModuleConfig and this ActionContext, look for an existing ActionForm in the specified scope. If one is found, return it; otherwise, create a new instance, add it to that scope, and then return it.

Provide the currently configured commons-logging Log instance.

Save the given ActionMessages into the request scope under the given key, clearing the attribute if the messages are empty or null.

Save the given messages into the map identified by the given scopeId under the given key.

Adapt a legacy form of SaveMessages to the ActionContext API by storing the ActoinMessages under the default scope.
Parameters:
- scope - The scope for the internal cache
- messages - ActionMesssages to cache

Set the commons-logging Log instance which should be used to LOG messages. This is initialized at instantiation time but may be overridden. Be advised not to set the value to null, as ActionContextBase uses the logger for some of its own operations.