if (qClass != null)
if (qClass != null) {
  private QuercusClass createQuercusClass(ClassDef def, QuercusClass parent)  {    ClassKey key = new ClassKey(def, parent);    SoftReference<QuercusClass> qClassRef = _classCache.get(key);    QuercusClass qClass;    if (qClassRef != null) {      qClass = qClassRef.get();      if (qClass != null)        qClass.init(this);        return qClass;    }    qClass = new QuercusClass(def, parent);    qClass.validate(this);    _classCache.put(key, new SoftReference<QuercusClass>(qClass));    qClass.init(this);    return qClass;  }