When the @WebService.wsdlLocation identifies a wsdl on the file path, an Exception is thrown stating, in part, "IllegalArgumentException: URI is not hierarchical"

There are no imported documents in my WSDL, so the problem must be the URI of the wsdl file itself.

I'm attaching my WSDL.

Here's the stacktrace:
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Allocate exception for servlet XFireServlet
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.codehaus.xfire.spring.ServiceBean' defined in class path resource [META-INF/xfire/services.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: URI is not hierarchical
java.lang.IllegalArgumentException: URI is not hierarchical
at java.io.File.<init>(Unknown Source)
at org.codehaus.xfire.util.Resolver.<init>(Resolver.java:76)
at org.codehaus.xfire.util.Resolver.<init>(Resolver.java:32)
at org.codehaus.xfire.wsdl.ResourceWSDL.<init>(ResourceWSDL.java:26)
at org.codehaus.xfire.annotations.AnnotationServiceFactory.create(AnnotationServiceFactory.java:243)
at org.codehaus.xfire.spring.ServiceBean.afterPropertiesSet(ServiceBean.java:158)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1059)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:363)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:275)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:320)
at org.codehaus.xfire.spring.XFireConfigLoader.getXFireApplicationContext(XFireConfigLoader.java:103)
at org.codehaus.xfire.spring.XFireConfigLoader.loadContext(XFireConfigLoader.java:39)
at org.codehaus.xfire.transport.http.XFireConfigurableServlet.loadConfig(XFireConfigurableServlet.java:75)
at org.codehaus.xfire.transport.http.XFireConfigurableServlet.createXFire(XFireConfigurableServlet.java:51)
at org.codehaus.xfire.transport.http.XFireServlet.init(XFireServlet.java:45)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)