ZK 5.0.2 with Spring Webflow doesn't work

What steps will reproduce the problem?

1. implement spring webflow on zk 5.0.2
2. create a view to be referred from a view state.
3. add grid component to the view and rerender it.

What is the expected output? What do you see instead?

"NoSuchMethodError:org.zkoss.zk.ui.Execution.setAttribute(Ljava/lang/String;Ljav
a/lang/Object;)V"
is thrown,
while rendering view without any exception is expected.

What version of the product are you using? On what operating system?

zk version 5.0.2
spring web mvc 2.5.6
spring webflow 2.0.5
zkspring 1.1.0
on Windows XP

Please provide any additional information below.

More components than grid may raise the same.
At least, label component doesn't throw the exception.

Referring the forum (http://www.zkoss.org/forum/listComment/12399/1/20#reply), 
henrichen said that "ZK5 change the signature of Execution#setAttribute"
caused the exception.

Original issue reported on code.google.com by uzenakost@gmail.com on 14 May 2010 at 4:03

zkoss / zkspring

ZK 5.0.2 with Spring Webflow doesn't work #2