Update method not allowed

Hi,

I'm trying to use the updateMethod on a WebdavResource but it doesn't works.
I have the following error :

30 Apr 2007 16:25:44 - org.apache.slide.webdav.WebdavServlet - ERROR -
org.apache.slide.webdav.WebdavException: Method Not Allowed
org.apache.slide.webdav.WebdavException: Method Not Allowed
    at org.apache.slide.webdav.WebdavServlet.service(WebdavServlet.java:149)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
    at org.apache.slide.webdav.filter.LogFilter.doFilter(LogFilter.java:147)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
    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)
http-8080-Processor21, 30-avr.-2007 16:25:44, unauthenticated, UPDATE, 405
"Method Not Allowed", 0 ms, /VivAOManager/test/


I just want to change the name of a resource :

public void test(){
...
  String dir = ConstantesSlide.ROOTDIR + "/test/";
  if(!WebdavUtil.exists(dir)){
    WebdavUtil.createDirectory(dir);
  }
  String dir2 = ConstantesSlide.ROOTDIR + "/test2/";
  WebdavUtil.updateResource(dir, dir2);
...
}


static public boolean updateResource(String source, String
destination)throws VMException{
        try {
            WebdavResource res = getWebDavResource();
            source = res.getHttpURL().getURI() + source;
            destination = res.getHttpURL().getURI() + destination;
            res.updateMethod(source, destination);
        }
...
}

Does anyone have an idea?