I have Eclipse 3.4.2 installed on Windows with subclipse. Another developer added an SVN repository with his credentials and selected \'Save password\'. Now every time I do
Delete the .keyring file under the location: configuration\org.eclipse.core.runtime, and after that, you will be invited to prompt your new svn account. for me it worked.
Go to c:\Documents and Settings[username]\Application Data\subversion\auth\svn.simple
and delete the hexadecimal file. Normally each file is associated with one repository
On Windows 7, go to C:\Users\%User_Name%\AppData\Roaming\Subversion and remove the auth directory. Just be aware if you are connected to more than 1 SVN server that this will remove the authentication for all of the SVN servers you have configured. If you want to reset just a single server:
Inside the auth directory you should see a folder called svn.simple. Open each of those files with a text editor to determine which one to remove and then remove just that single file.
On any Windows Version delete the following folder:
%APPDATA%\Subversion\auth
(You can copy&paste this to RUN/Explorer, and it will resolve the App-Data-Folder for you.)
On Linux and OSX it is located in
~/.subversion/auth
Source: http://www.techcrony.info/2008/03/26/admin/how-to-change-eclipse-svn-password/
Delete the .keyring file under the location: configuration\org.eclipse.core.runtime, and after that, you will be invited to prompt your new svn account.
(Windows 7 Eclipse Indigo 3.7)
C:\Users\\AppData\Roaming\Subversion\auth\svn.simple
Find svn information file and make it writable.
(they are default readonly)
(no restart of eclipse required)