I've been seeing a strange issue when attempting to use GWT with
Spring Security as described here:
http://code.google.com/p/gwt-incubator-lib/

I can deploy the application as a war and run it just fine in Tomcat,
however when I try to run it in hosted mode with jetty I get the
following error:

org.springframework.beans.factory.parsing.BeanDefinitionParsingException:
Configuration problem: Unable to locate Spring NamespaceHandler for
XML schema namespace [http://www.springframework.org/schema/security]
Offending resource: ServletContext resource [/WEB-INF/aop-
applicationContext.xml]

I've posted this to the Spring forums and they mention it's a
classpath issue, that there may be more than one instance of the
Spring Security jars on my classpath.  I've double-checked my jars and
this doesn't seem to be an issue (especially since I package them with
my app and it works fine).  I'm wondering if somehow jetty or GWT is
using a class that might be interfering with the resolution of the
namespace.  Prior to incorporating security in my app it was running
fine in hosted mode, even with other Spring beans, so this makes me
think it's related to Spring Security (and not just Spring itself)
somehow.

Any ideas?
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