JSF Size of arraylist throws exception

[legit]

I posted this over in the Richfaces forum, they suggested posting here to get more info.

http://community.jboss.org/thread/164602

I get a numberFormatException with the following code (full stack trace is at the original post):

<rich:panel id="myPanel" header="#{myClass.myList.size()}">

     ... inside panel stuff

</rich:panel>

The reason it relates to JBoss and not Richfaces is because this code works fine in Glassfish 3.1 but in JBoss AS 6 it fails.

Can anyone provide any more details on why I'm getting this exception?

[spolti]

Maybe can be a missing lib.

Cuz u is using glassfish and now u wants to use JB as 6.

Try it on JB 5

[legit]

Not to sound rude, but this is not out of the ordinary code, it should be interpreted by the JSF library that JBoss AS6 ships with, and the call to size is simply a call to an ArrayLists size.  Shouldn't need any out of the ordinary library for that.

Am I wrong?

[spolti]

Can u post the exception>?

[ssilvert]

There was this Jira but it should have been fixed before AS6 final:

https://issues.jboss.org/browse/JBAS-8374

Maybe you could try the WAR attached to that jira and see if it is broken again.

Stan

[legit]

As stated in my initial posting, the full stack trace is at the original thread in the richfaces forum: http://community.jboss.org/thread/164602

[spolti]

look it

java.lang.NumberFormatException: For input string: "size"

at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)

at java.lang.Integer.parseInt(Integer.java:449)

at java.lang.Integer.parseInt(Integer.java:499)

at javax.el.ListELResolver.toInteger(ListELResolver.java:407)

your list is of which type?

if int try change to double.

[legit]

@Filippe the list is an ArrayList which gets the size() method from the List interface in Java.

The issue here is not my list, but why jboss doesn't know how to perform that call (or why the libraries it ships with dont).

[iabughosh]

Dear D F,

you can use jstl library (functions) as follows:

include the namespace : xmlns:fn="http://java.sun.com/jsp/jstl/functions"

<rich:panel id="myPanel" header="#{fn:length(myClass.myList)}">

     ... inside panel stuff

</rich:panel>

it will do the job.