JBossWS-CXF -"Unable to create JAXBContext for generated packages" error on Windows when classpath is empty

15:26:06,691 INFO [DynamicClientFactory] Created classes:
net.webservicex.ChangeLengthUnit, net.webservicex.ChangeLengthUnitResponse,
net.webservicex.Lengths, net.webservicex.ObjectFactory
15:26:08,316 INFO [STDOUT] javac: invalid flag:
C:/Temp/org.apache.cxf.endpoint.dynamic.DynamicClientFactory@19b0120-1355516766691-classes
Usage: javac <options> <source files>
use -help for a list of possible options
15:26:08,348 SEVERE [DynamicClientFactory] Could not compile java files for
http://www.webservicex.net/length.asmx?WSDL.
15:26:08,410 ERROR [TargetServiceAction] java.lang.IllegalStateException:
Unable to create JAXBContext for generated packages: "net.webservicex"
doesnt contain ObjectFactory.class or jaxb.index

Run attached jms_topic.zip to reproduce the error. This only happens on Windows, not on OSX or Linux