We have separate SVN repositories for our projects. All of them are on the same server and may have different credentials. As a key for storing credentials, Hudson only uses the server part of the URL instead of the whole URL. As a result, we only ever get one entry in the config file of the Subversion Plugin for the key "https://myserver:443", but we would need sepearate credential entries for e. g. "https://myserver/repos/foo", "https://myserver/repos/bar" etc.

<entry>
    <string>&lt;https://myserver:443&gt; Subversion repository</string>
    <hudson.scm.SubversionSCM_-DescriptorImpl_-PasswordCredential>
        <userName>myuser</userName>
        <password>mypass</password>
    </hudson.scm.SubversionSCM_-DescriptorImpl_-PasswordCredential>
</entry>

I'm creating this ticket as suggested on the mailing list. See the related discussion:

http://hudson.361315.n4.nabble.com/Problem-with-different-Subversion-credentials-td2075037.html