error importing relative XSDs

Hi.

I've upgraded to 3.0.1 this morning and it seems that this version doesn't like relative schema imports.
I get this error message with a wsdl that was imported ok with 2.x:

Sun Sep 13 13:14:13 CEST 2009:ERROR:Loading of definition failed for [https://localhost:8443/backend/soap/user/MyRoomCategoryWSService?wsdl]; javax.wsdl.WSDLException: WSDLException (at /definitions/types/xs:schema): faultCode=OTHER_ERROR: Unable to locate with a locator the schema referenced at 'frontend-common.xsd' relative to document base 'https://localhost:8443/backend/soap/user/MyRoomCategoryWSService?wsdl'
Sun Sep 13 13:14:13 CEST 2009:ERROR:An error occured [WSDLException (at /definitions/types/xs:schema): faultCode=OTHER_ERROR: Unable to locate with a locator the schema referenced at 'frontend-common.xsd' relative to document base 'https://localhost:8443/backend/soap/user/MyRoomCategoryWSService?wsdl'], see error log for details
Sun Sep 13 13:15:32 CEST 2009:ERROR:An error occured [javax.wsdl.WSDLException: WSDLException (at /definitions/types/xs:schema): faultCode=OTHER_ERROR: Unable to locate with a locator the schema referenced at 'frontend-common.xsd' relative to document base 'https://localhost:8443/backend/soap/user/MyRoomCategoryWSService?wsdl'], see error log for details

Where the wsdl (...MyRoomCategoryWSService?wsdl) begins with:

<definitions xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://www.foobar.de/frontend/user" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:frontend-user="http://www.foobar.de/frontend/user" xmlns:frontend-common="http://www.foobar.de/frontend/common" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
  <types>
    <xs:schema targetNamespace="http://www.foobar.de/frontend/user">
      <xs:import namespace="http://www.foobar.de/frontend/common" schemaLocation="frontend-common.xsd"/>

frontend-common.xsd can be accessed simply via browser:

https://localhost:8443/backend/soap/user/frontend-common.xsd

So it lies next to:

https://localhost:8443/backend/soap/user/MyRoomCategoryWSService?wsdl

But somehow it can't be found by soapui.

If I change it to an absolute path like:

schemaLocation="/backend/soap/user/frontend-common.xsd"

It works as expected.

Any hints?