The contents of the XPRESS <map> element are pairs of name/value expressions. The even-numbered expressions define map keys, and odd-numbered expressions define map values. If any key expression evaluates to null, the entry is ignored.
You can use the XPRESS <map> element to dynamically construct java.util.HashMap objects:
<map> <s>name</s> <s>Jeff</s> <s>phone</s> <s>338-1818</s> </map>