Fix example which doesn't work because JiBX can't modify the MapEntry class.
Fix example which doesn't work because JiBX can't modify the MapEntry class.

permazen/permazen,tempbottle/jsimpledb,tempbottle/jsimpledb,archiecobbs/jsimpledb,archiecobbs/jsimpledb,permazen/permazen,tempbottle/jsimpledb,permazen/permazen,archiecobbs/jsimpledb