Same as the suggested solution but doesn't work

Question about the task

Resolved

Well, this quite simple code of mine doesn't only produce the expected output but also fully coincides with the suggested solution (I checked it line by line). Still, it does not pass the verification. Could there be a bug?

The Solution class has a checkWords(String) method that should check whether the passed word is present in the words set.
If the word is present, then we display the following on the console:
The word [passed word] is in the set
If not:
The word [passed word] is not in the set

The main method is not checked.

Example output:
The word Java is in the set

Requirements:

The Solution class must have a public static HashSet<String> words field.
The Solution class must have a public static checkWords(String) method with a void return type.
The checkWords(String) method must work in accordance with the task conditions.

package en.codegym.task.pro.task13.task1302; import java.util.Arrays; import java.util.HashSet; import java.util.Set; import static java.util.Arrays.asList; /* Verifying existence */ public class Solution { public static Set<String> words = new HashSet<>(asList("If they asked me to choose a language to replace Java I wouldn't choose".split(" "))); public static void checkWords(String word) { //write your code here if (words.contains(word)) { System.out.println(String.format("The word %s is in the set", word)); } else { System.out.println(String.format("The word %s is in not the set", word)); } } public static void main(String[] args) { checkWords("JavaScript"); checkWords("Java"); } }