How do you override Struts 2 Messages?

Here is a portion of my struts.xml: ``` <constant name="struts.custom.i18n.resources" value="global" /> ``` and ``` <action name="picture_save" method="pictureSave" class="PictureActionBean"> <interceptor-ref name="fileUpload"> <param name="maximumSize"> 2097152 </param> <param name="allowedTypes"> image/bmp,image/gif,image/jpeg,image/jpg,image/png </param> </interceptor-ref> <interceptor-ref name="defaultStack"></interceptor-ref> <result name="success" type="redirect">picture</result> <result name="error">error</result> </action> ``` My global.properties file is stored directly in src/ and it contains this: ``` struts.messages.error.uploading=Upload failed struts.messages.error.file.too.large=Upload file is too large struts.messages.error.content.type.not.allowed=Wrong file type uploaded ``` Here is how I'm displaying the error in the jsp: ``` <s:fielderror /> ``` Currently, when I upload a file that is too big for example, I get the error: the request was rejected because its size (6561343) exceeds the configured maximum (2097152) What I want to do is make it say "Uploaded file is too large" instead of the message above. What is an easy way to do this? EDIT 1: I'm using struts version 2.1.8.1 EDIT 2: Another thing is that when I add: ``` <result name="input" type="redirect">error</result> ``` to my struts.xml then no error shows at all. What is the reason for this?