Check if a message exists

[Roberto Lima Jr]

Hi, evereyone,

I need to check if a message was specified in my application.properties 
before create an ActionError whith this error.

Example:

if (hasMessage("error.text.required")) {
  message = new ActionMessage("error.text.required");
}else {
  message = new ActionMessage("error.default.message");
}

Does anybody know how to implement the "hasMessage" method???

Thanks!

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