Carsten Ziegeler wrote:
Joerg Heinicke wrote:
On 27.12.2006 13:48, Reinhard Poetz wrote:
Does anybody else see this error message when he tries to use the latest
snapshot from trunk?
java.lang.NullPointerException
at
org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:50)
Line 50 of the PoolableProxyHandler is
RequestContextHolder.getRequestAttributes().removeAttribute(this.attributeName,
RequestAttributes.SCOPE_REQUEST);
Don't know about Cocoon trunk yet, but if RequestContextHolder is the
one delivered with Spring you need a component setting the
RequestAttributes on the RequestContextHolder. Therefore you can use
RequestContextListener or RequestContextFilter and declare it in web.xml.
Exactly :)
I removed our own implementation in favour of Spring's
RequestContextHolder. The attributes are used to keep track of poolable
components and to release them when the request is finished.
Therefore you should add the Spring's request context listener to your
web.xml (I added it to web.xml in svn); this listener requires servlet
spec 2.4.
Thanks Carsten and Jörg! After adding the
org.springframework.web.filter.RequestContextFilter, the reloading classloader
(works like the shielded cl) works for me again.
For some reasons the use of the
org.springframework.web.context.request.RequestContextListener caused this
exception:
java.lang.IllegalStateException: No thread-bound request found: Are you
referring to request attributes outside of an actual web request? If you are
actually operating within a web request and still receive this message,your code
is probably running outside of DispatcherServlet/DispatcherPortlet: In this
case, use RequestContextListener or RequestContextFilter to expose the current
request.
Don't know what's wrong here, but I won't investigate further because together
with the manipulation of the classloading mechanism like the reloading
classloader does, things are often difficult to debug at that level.
--
Reinhard Pötz Independent Consultant, Trainer & (IT)-Coach
{Software Engineering, Open Source, Web Applications, Apache Cocoon}
web(log): http://www.poetz.cc
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