Response res = siSandbox.lock( memberFile, filename );
            int exitCode = res.getExitCode();
            boolean success = ( exitCode == 0 ? true : false );
            result = new ScmResult( res.getCommandString(), "", "Exit Code: " + exitCode, success );
        }
        catch ( APIException aex )
        {
            ExceptionHandler eh = new ExceptionHandler( aex );
            getLogger().error( "MKS API Exception: " + eh.getMessage() );
            getLogger().info( eh.getCommand() + " exited with return code " + eh.getExitCode() );
            result = new ScmResult( eh.getCommand(), eh.getMessage(), "Exit Code: " + eh.getExitCode(), false );
        }

        return result;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected ScmResult executeCommand( ScmProviderRepository repository, ScmFileSet fileSet,
                                        CommandParameters parameters )
        throws ScmException
    {