toMap(FloorElement::getFloorId, value -> value));
Map<Long, FloorElement> floorElementMap2 = floorElementList4.stream().collect(Collectors.
toMap(FloorElement::getFloorId, value -> value));
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toMap(FloorElement::getFloorId, value -> value));
Map<Long, FloorElement> floorElementMap2 = floorElementList4.stream().collect(Collectors.
toMap(FloorElement::getFloorId, value -> value));
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