Struts 1.0.2 problem JDK1.3 vs JDK1.4

[Creighton Kirkendall <ckirkendall@xxxxxxxxxxxxxx>]

I have another weird problem for you guys.

I am running Struts 1.0.2

I have an action form developed outside of our company that uses an ArrayList as a property in form.  This property is called locations.  They have a getter and a setter for the property.  This array list has an object in it that has boolean flag of active.

In the JSP they reference this property for a checkbox like so.


<html:checkbox name="computersForm" property='<%= "locations["+i +"].active" %>' /> 

Now comes the weird part this works fine in jdk1.3 but fails under 1.4. Struts is failing on a call to object.getClass().isArray().  But does not fail on this call in 1.3.  I am lost as to what the true problem is.  

Here is the stack trace 


java.lang.IllegalArgumentException: Property 'locations' is not indexed
        at
org.apache.struts.util.PropertyUtils.getIndexedProperty(PropertyUtils.ja
va(Inlined Compiled Code))
        at
org.apache.struts.util.PropertyUtils.getIndexedProperty(PropertyUtils.ja
va(Inlined Compiled Code))
        at
org.apache.struts.util.PropertyUtils.getNestedProperty(PropertyUtils.jav
a(Compiled Code))
        at
org.apache.struts.util.BeanUtils.getNestedProperty(BeanUtils.java:297)
        at
org.apache.struts.util.BeanUtils.getProperty(BeanUtils.java:322)
        at
org.apache.struts.taglib.html.CheckboxTag.doStartTag(CheckboxTag.java:20
7)

Note: the form is in the session scope and it locations does have a getter and a setter that return an ArrayList.


Creighton Kirkendall