The i externalize string, IDEA by defult used expression like: zzz.message("", Arrays.asList(args),new Integer(args.length)) My template is: ${RESOURCE_BUNDLE}.message("${PROPERTY_KEY}", $PARAMETERS$) In preview shown: zzz.message("", Arrays.asList(args),new Integer(args.length)).message("", Arrays.asList(args),new Integer(args.length)) So, the expression is only value for ${RESOURCE_BUNDLE} variable. Please rename it in Dialog: Resource bundle expression -> Resource bundle class. And keep typed class for chosed resource bundle in combobox. The i choose resource bundle from combobox, please restore my class, previously typed here, cos this class is used to retrieve properties values.