appending to a file

Hello,

I am working on a webdav client and would like to append to an  
existing file on webdav.  After reading the javadocs for  
WebdavResource's putMethods and doing a few small tests, it seems  
that all the putMethods (that take a path argument, at least)  
overwrite the file instead of append to it.  If any one can help me  
out, I would really appreciate it.

Thanks kindly,
Tiff