DB connection leak in DAVServlet
--------------------------------

                 Key: DS-1074
                 URL: https://jira.duraspace.org/browse/DS-1074
             Project: DSpace
          Issue Type: Bug
          Components: LNI
    Affects Versions: 1.8.0, 1.7.2, 1.6.2, 1.5.2
            Reporter: Bo Gundersen
            Priority: Major
         Attachments: dspace-1.5.2_connection_fix.diff, 
dspace-1.6.2_connection_fix.diff, dspace-1.7.2_connection_fix.diff, 
dspace-1.8.0_connection_fix.diff

When using basic authentication, the DAVServlet leaks a connection each time a 
session is authenticated.
The authenticate method constructs a Context (which in turn allocates a DB 
connection), but the Context is not closed or returned from the method in the 
case where a "WWW-Authenticate" header is sent back.

Also, if an error occurs in the processing of the authentication, the context 
is also not closed.

I have attached patches for versions 1.5.2, 1.6.2, 1.7.2 and 1.8.0.

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