Example error when attempting to update the svn credentials on hudson for windows:
hudson svn windows “the request doesn’t contain a multipart/form-data or multipart/mixed stream”
To fix this download svnkit-126.96.36.19906 to your hard disk. Login to computer hosting hudson as the user that hudson runs as. For example, if hudson runs under tomcat and tomcat runs as user “tomcat_service” you would need to log in to that windows box as user “tomcat_service”.
Once you’ve logged in go to the extracted svnkit directory and run:
mkdir test jsvn co (svn url) test --username (your svn username) --password (your svn pw)