I get eclipse from my friend and his eclipse use his user to communicate with SVN, commit or update. I want to change to my user but i can\'t. I read these topics, but they
Ask your friend to change his/her password. The next time you try to access the repository, you will be asked to provide username or password.
Alternatively, you could clear the cached credentials. There are two ways to do this depending on what client adapter, the plugin is using.
To find out which client adapter is used: Go to Windows->Preferences->Team->SVN. In the Client Interface section, check which adapter is used.
If you are using JavaHL then you need to delete files from the svn.simple directory This directory is usually located in %AppData%\Subversion\auth. (Go to command promt and echo %AppData% to find out location of the AppData directory)
If you are using SVNKit then you need to delete the .keyring file from eclipse configuration directory. On my workstation the location of this .keyring file is \configuration\org.eclipse.core.runtime