VFS concurreny problem while using webdav [couldn't determine type of file.

I am using VFS for reading and writing to webdav server.

and using jakarta slide project for webdav.

If two threads try to write simultaneouly to webdav , it gives error

"Could not determine type of file webdav://admin:indigo@localhost:8080/slide/files/group1Folder/ContextTarget/192168001162117562815968700004"

Here is code sample

-

FileSystemManager fsManager = VFS.getManager();

FileObject _fileObject = _fsManager.resolveFile(url);

/***

Function that create fodler

*/

public void createNewFolder() throws IndigoException , FileSystemException{

if (!_fileObject.exists()){

_fileObject.createFolder();

close();

}

}

"Lock" Property for slide is set true.

"org.apache.slide.lock=true "

Do any body have suggetion ?

[837 byte] By [AbhishekSunIna] at [2007-11-26 23:02:22]