<s:fileUpload id="file" required="true" data="#{importLibraryFileUi.data}" fileName="#{importLibraryFileUi.fileName}" fileSize="#{importLibraryFileUi.fileSize}" contentType="#{importLibraryFileUi.fileContentType}"/>
Above ValueExpressions (data, fileName, fileSize and fileContentType) are not resolved because I don't have a getXXX method for each setXXX method.
Bug
Open
ValueExpression setXXX method is not resolved if getXXX method don't exist.