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Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
static HashMap pairsToMapExcludingSame(Collection> l) { new HashMap map; if (l != null) for (Pair p : l) if (neq(p.a, p.b)) map.put(p.a, p.b); ret map; }