
 /a/b/subject[@qualifier=]/subtag
 /a/b/subject/@qualifier
 //a
 //a/b...
 /a//b
 /a//b...
 /a/b/c
 </pre>
 A record is a Map&lt;String,Object&gt; . The key is the provided name
 and the value is a String or a List&lt;String&gt;

 This class is thread-safe for parsing xml. But adding fields is not
 thread-safe. The recommended usage is to addField() in one thread and 
 then share the instance across threads.
 </p>
 <p/>
 <b>This API is experimental and may change in the future.</b>
 <p></div>
<dl><dt><span