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? > > > > > > -- > > To unsubscribe, e-mail: > <mailto:struts-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: > <mailto:struts-user-help@;jakarta.apache.org> > > > > -- > To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org> -- To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org>
