void (@NotNull YAMLScalar scalarValue, @NotNull ProblemsHolder holder) { super.validateScalarValue(scalarValue, holder); String text = scalarValue.getTextValue(); if (text.isEmpty()) { // not our business return; } if (Arrays.asList(myDeprecatedLiterals).contains(text)) { holder.registerProblem(scalarValue, YAMLBundle.message("YamlEnumType.validation.warning.value.deprecated", text), ProblemHighlightType.LIKE_DEPRECATED); } else if (Stream.concat(Arrays.stream(myHiddenLiterals), getLiteralsStream()).noneMatch(text::equals)) { //TODO quickfix makes sense here if !text.equals(text.toLowerCase) holder.registerProblem(scalarValue, YAMLBundle.message("YamlEnumType.validation.error.value.unknown", text), ProblemHighlightType.GENERIC_ERROR_OR_WARNING); } }