Authentication challenge is empty

What steps will reproduce the problem?
trying to access slide on port 8081 :
configuring an HTTP client instance (registering a new scheme (http, 8081))
instantiating SardineImpl
sending a PROPFIND request (SardineImpl.list)

What is the expected output? What do you see instead?
expecting :
a first request
a WWW-Authenticate: Basic answer
a second request

result :
no second request

What version of the product are you using?
314

On what operating system?
centOS

What webdav server are you hitting?
slide 

What is in the server error logs?
1323707 ERROR sardine.SardineAccessImpl getChildren[212]  - IOException 
retrieving this file or directory  : 
http://jaronne.u-bordeaux4.fr:8081/slide/files/homedir/personnel/p/pb/pbouvret/
1323709 ERROR crudlog.CrudLogService logError[140]  - getFolderChildren - 
getFolderChildren null pbouvret [Ljava.lang.Object;@4edb440a  - 
org.apache.http.client.ClientProtocolException - params [ {3}] - exception {4}
org.esupportail.portlet.filemanager.exceptions.EsupStockException: 
org.apache.http.client.ClientProtocolException
        at org.esupportail.portlet.filemanager.services.sardine.SardineAccessImpl.getChildren(SardineAccessImpl.java:213)
        at org.esupportail.portlet.filemanager.services.ServersAccessService.getChildren(ServersAccessService.java:258)
        at org.esupportail.portlet.filemanager.services.ServersAccessService.getFolderChildren(ServersAccessService.java:270)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...
Caused by: org.apache.http.client.ClientProtocolException
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:822)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:941)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:919)
        at com.googlecode.sardine.impl.SardineImpl.execute(SardineImpl.java:776)
        at com.googlecode.sardine.impl.SardineImpl.list(SardineImpl.java:349)
        at com.googlecode.sardine.impl.SardineImpl.list(SardineImpl.java:338)
        at org.esupportail.portlet.filemanager.services.sardine.SardineAccessImpl.getChildren(SardineAccessImpl.java:198)
        ... 62 more
Caused by: org.apache.http.auth.MalformedChallengeException: Authentication 
challenge is empty
        at org.apache.http.impl.auth.RFC2617Scheme.parseChallenge(RFC2617Scheme.java:71)
        at org.apache.http.impl.auth.AuthSchemeBase.processChallenge(AuthSchemeBase.java:115)
        at org.apache.http.impl.auth.BasicScheme.processChallenge(BasicScheme.java:89)
        at org.apache.http.impl.client.DefaultRequestDirector.processChallenges(DefaultRequestDirector.java:1195)
        at org.apache.http.impl.client.DefaultRequestDirector.handleResponse(DefaultRequestDirector.java:1090)
        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:492)
        at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
        ... 68 more

Please provide any additional information below (including code examples
and full stack traces with line numbers in them).
Original issue reported on code.google.com by pierre.b...@gmail.com on 22 Jun 2012 at 8:48
TheProjecter / sardine

Authentication challenge is empty #127
