Hi David-

As you suggested I delved into getDisplaySections.  I found that my "name"
value, displaySections, was inappropriately identified as an
PropertyDescriptor even though it is defined as an ArrayList with get and
set methods that handle the ArrayList datatype.  The funny thing is that the
propertyType attribute of the PropertyDescriptor is ArrayList for the
displaySections node.

Given this new info, what do you think is going on here?


> -----Original Message-----
> From: Karr, David [mailto:david.karr@;attws.com]
> Sent: Thursday, November 14, 2002 2:03 PM
> To: Struts Users Mailing List
> Subject: RE: IndexOutOfBounds error, Struts 1.1b2, J2SDK 1.4.1
>
>
> Step through the "getPropertyDescriptor()" method, which is
> called just before that check.  That's what makes the decision on
> what type to return.  What is the value of "name"?
>
> > -----Original Message-----
> > From: Jim Krygowski [mailto:james.krygowski@;shaws.com]
> > Sent: Thursday, November 14, 2002 10:43 AM
> > To: Struts Users Mailing List
> > Subject: RE: IndexOutOfBounds error, Struts 1.1b2, J2SDK 1.4.1
> >
> >
> > Been doing some research since my last post.  Here's the setup, same
> > application code, same struts jars, same app server switching
> > between JDK
> > 1.3.1 and 1.4.1:
> >
> > When processing a submit, in the PropertyUtils the following
> > check is made
> > in the getIndexedProperty method on or around line 468:
> >
> >  if (descriptor instanceof IndexedPropertyDescriptor) {
> >
> > With JDK 1.3.1 running descriptor is indeed an
> > IndexedPropertyDescriptor,
> > but with JDK 1.4.1 I get a java.beans.PropertyDescriptor, so
> > the code passes
> > by the block that should handle the property I've passed an
> > onto a block of
> > code that results in the IndexOutOfBoundsException.
> >
> > This seems like a 1.4.1 induced bug.  Should I log it in
> > Bugzilla?  Has
> > anyone else seen this bug?
> >
> >
> >
> > > -----Original Message-----
> > > From: Jim Krygowski [mailto:james.krygowski@;shaws.com]
> > > Sent: Thursday, November 14, 2002 11:32 AM
> > > To: Struts Users Mailing List
> > > Subject: IndexOutOfBounds error, Struts 1.1b2, J2SDK 1.4.1
> > >
> > >
> > > Hi all-
> > >
> > > we have an application originally written to struts 1.1b2 and
> > > J2SDK 1.3.1_03
> > > that was working fine.  Recently, we've been given the signal to
> > > upgrade to
> > > J2SDK 1.4.1.  Fine, but now we're finding that our form
> > posts are failing
> > > with IndexOutOfBoundsException.  I've traced through the Struts
> > > source with
> > > a debugger and found the problem in this block of
> > PropertyUtils code:
> > >
> > >         // Call the property getter and return the value
> > >         Object value = readMethod.invoke(bean, new Object[0]);
> > >         if (!value.getClass().isArray()) {
> > >             if (!(value instanceof java.util.List)) {
> > >                 throw new
> > IllegalArgumentException("Property '" + name
> > >                         + "' is not indexed");
> > >             } else {
> > >                 //get the List's value
> > >                 return ((java.util.List) value).get(index);
> > >             }
> > >         } else {
> > >             //get the array's value
> > >             return (Array.get(value, index));
> > >         }
> > >
> > > It seems to me that the line:
> > >
> > > return ((java.util.List) value).get(index)
> > >
> > > fails because the form bean just got created by Struts and
> > hasn't been
> > > populated yet.  However, it works just fine when I switch back to
> > > JDK 1.3.1.
> > >
> > > Anyone got any suggestions as to what might be happening?
> > >
> > >
> > > --
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