Hello,

I'm trying to bind a Map entry to h:inputText. The code below successfully extracts the value for the key when the page is loaded, but when I submit it, the page reloads with an error alongside the field: model validation failed:String index out of range: -1

From the .xhtml

<h:form id="dataEntryForm">
...
<h:inputText id="asdf" required="true" value="#{biomarkers['waist']}" />
...
</h:form>

...
@Out
Map<String, String> biomarkers = new HashMap<String, String>();
...
// method code that preps the Map prior to being used
biomarkers.put("waist", "33.3");
...