Как преобразовать объект для перечисления в Java
//Assuming that your object is a valid List object, you can use: Collections.singletonList(object) -- Returns an immutable list containing only the specified object.
List<Object> list = Collections.singletonList(object);
//If you want it in a specific datatype, use Stream.of(object):
List<String> list = Stream.of(object).map(Object::toString).collect(Collectors.toList())
//Similarly, you can change the method in the map to convert to the datatype you need.
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