junit-servers-core/src/main/java/com/github/mjeanroy/junit/servers/commons/CollectionUtils.java
public static <T, U> List<U> map(Collection<T> inputs, Mapper<T, U> mapper) {
		if (inputs == null) {
			return null;
		}

		List<U> outputs = new ArrayList<>(inputs.size());
		for (T input : inputs) {
			outputs.add(mapper.apply(input));
		}

		return outputs;
	}
public static <T, U> List<U> map(Collection<T> inputs, Mapper<T, U> mapper) {
		if (inputs == null) {
			return null;
		}

		List<U> outputs = new ArrayList<>(inputs.size());
		for (T input : inputs) {
			outputs.add(mapper.apply(input));
		}

		return outputs;
	}
Map input values to output values.

@param inputs Input values.
@param mapper Mapper function.
@param <T> Type of input values.
@param <U> Type of output values.
@return Output values.