Unexpected EOF in prolog - CXF -https

Hi All,I recently stumbled upon this issue, which I dont seem to understand
why its happenning.I have a cxf SOAP web-services running on a Tomcat
server, everything works fine when I try to access the webservices via a
stand-alone program either using the tomcat /apache url via http. But when I
try to access it via https url, i get this - "Unexpected EOF in prolog"
issue intermittentlyi.e, works a few times and fails a few times. i have
set-up the usernametoken security set-up in the wsdl defin itself, it been
working fine on the tomcat/apache server quite well all these days, but when
we tried to access it via https. then its hit by the below error.. Please
suggest!*Exception in thread "main" javax.xml.ws.WebServiceException:
org.apache.cxf.service.factory.ServiceConstructionException: Failed to
create service. at org.apache.cxf.jaxws.ServiceImpl.(ServiceImpl.java:149)
at
org.apache.cxf.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:98)
at javax.xml.ws.Service.(Service.java:35)Caused by:
org.apache.cxf.service.factory.ServiceConstructionException: Failed to
create service. at
org.apache.cxf.wsdl11.WSDLServiceFactory.(WSDLServiceFactory.java:100) at
org.apache.cxf.jaxws.ServiceImpl.initializePorts(ServiceImpl.java:203) at
org.apache.cxf.jaxws.ServiceImpl.(ServiceImpl.java:147) ... 4 moreCaused by:
javax.wsdl.WSDLException: WSDLException: faultCode=PARSER_ERROR:
com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog at
[row,col,system-id]: [1,0,"https://xx.com?wsdl"] at
org.apache.cxf.wsdl11.WSDLManagerImpl.loadDefinition(WSDLManagerImpl.java:241)
at
org.apache.cxf.wsdl11.WSDLManagerImpl.getDefinition(WSDLManagerImpl.java:190)
at org.apache.cxf.wsdl11.WSDLServiceFactory.(WSDLServiceFactory.java:98) ...
6 moreCaused by: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
at [row,col,system-id]: [1,0,"https://xx.com?wsdl"]*