Fix class name not being shown in exception message.
Fix class name not being shown in exception message.

Spriz/crud,dakota/crud,johanmeiring/crud,davidyell/crud,bcrowe/crud,ojengwa/crud,FriendsOfCake/crud,pwerken/cakephp-crud,deizel/crud,bravo-kernel/crud,simkimsia/crud,ankr/crud,FriendsOfCake/crud-json-api