DynaActionForm: ArrayIndexOutOfBoundsException

[gd...@cmhc-schl.gc.ca]

Hello,

I have a DynaActionForm such as:
<form-bean name="dynaCWWHistoryForm" type=
"org.apache.struts.action.DynaActionForm">
   <form-property name="cancelButton" type=
"org.apache.struts.util.ImageButtonBean"></form-property>
   <form-property name="displayContent" type="java.lang.Boolean"></
form-property>
   <form-property name="frmtPrinter" type="java.lang.String"></
form-property>
   <form-property name="historyItems" type="personal.history.HistoryVO[]"
></form-property>
   <form-property name="language" type="java.lang.String"></form-property>
   <form-property name="scheduleTypes" type="java.util.List"></
form-property>
   <form-property name="systemDate" type="java.lang.String"></
form-property>
   <form-property name="updateButton" type=
"org.apache.struts.util.ImageButtonBean"></form-property>
   <form-property name="workWeekSchedule" type="java.lang.String"></
form-property>
   <form-property name="years" type="java.util.List"></form-property>
</form-bean>

If I assign a size to the array such as:
   <form-property name="historyItems" type="personal.history.HistoryVO[]" 
size="4"></form-property>
It works fine.

My problem is two fold:
1. The HistoryVO[] can be of any size... therefore I cannot assgin a size 
to the <form-property>
2. The user can add rows dynamically to DOM using JavaScript... how can 
this also work with the DynaActionForm ?

Much appreciated,
Glenn