Svn provider- file protocol with 3 slashes

I am trying to use the scm:svn within maven release plugin. Currently we access the svn repository via file://....

If i use file://, then i get an error message from the scm plugin (scm url is invalid) as you can see in the sourcecode below.
If i use file:///, then it will be accepted by the scm provider but i
get an error from the svn command.

Is it possible to change the implementation of the method AbstractSvnScmProvider.parseScmUrl( String scmSpecificUrl ) in order to
accept (file://)

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private ScmUrlParserResult parseScmUrl( String scmSpecificUrl )
{
ScmUrlParserResult result = new ScmUrlParserResult();

String url = scmSpecificUrl;

// ----------------------------------------------------------------------
// Do some sanity checking of the SVN url
// ----------------------------------------------------------------------

if ( url.startsWith( "file" ) )
{
if ( !url.startsWith( "file:///" ) && !url.startsWith( "file://localhost/" ) )

{ result.messages.add( "A svn 'file' url must be on the form 'file:///' or 'file://localhost/'." ); return result; }

}

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