Thymeleaf sets.contains not working as expected

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Java

ThymeLeaf

I have 2 buttons which I would like to show depending on whether a user is admin or not.

<tbody id="table-container">
   <tr th:each="user : ${allUsers}">
      <th scope="row" th:text="*{user.id}">1</th>
      <td th:text="*{user.firstName}">x</td>
      <td>
         <th:block th:if="${!#sets.contains(user.getRoles(), 'ADMIN')}">
            <form class="form-inline"
               th:action="@{/admin/manage-users/add-admin(email=*{user.email})}"
               th:method="PATCH">
               <button class="btn btn-sm" type="submit" data-toggle="tooltip"
                  data-placement="top" title="Make Admin"><i
 class="bx bxs-file-plus bx-md" style="color: #5ca3b4" __^&lt;="" i="">
               </button>
            </form>
         </th:block>
         <th:block th:if="${#sets.contains(user.getRoles(), 'ADMIN')}">
            <form th:action="@{/admin/manage-users/remove-admin(email=*{user.email})}"
               th:method="PATCH">
               <button class="btn btn-sm" type="submit" data-toggle="tooltip"
                  data-placement="top" title="Remove Admin Role">
               ^__i class='bx bxs-folder-minus bx-md'
                  style="color: #dc3545">
               </button>
            </form>
         </th:block>
      </td>
   </tr>

However #sets.contains does not work, what I get as an output is always Make Admin button, the Remove Admin button does not show at all.


The Controller:

@GetMapping("/admin/manage-users")
public String allUsers(Model model) {
List <AllUsersServiceModel> allUsersServiceModels = this.userService.findAll();
List <AllUsersViewModel> allUsersViewModels = allUsersServiceModels
.stream()
.map(a -> this.mapper.map(a, AllUsersViewModel.class))
.collect(Collectors.toList());

model.addAttribute("allUsers", allUsersViewModels);

return "manage-users";
}

UserRoleEntity:

@Entity
@Table(name = "roles")
public class UserRoleEntity {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(nullable = false)
@Enumerated(EnumType.STRING)
private UserRoleEnum role;

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
UserRoleEntity that = (UserRoleEntity) o;
return this.role == that.role;
}
@Override
public int hashCode() {
return Objects.hash(this.role);
}

UserEntity:

@Entity
@Table(name = "users")
public class UserEntity extends BaseEntity {
 @ManyToMany(fetch = FetchType.EAGER)
    private Set<UserRoleEntity> roles = new HashSet<>();

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        UserEntity user = (UserEntity) o;
        return Objects.equals(roles, user.roles);
    }

    @Override
    public int hashCode() {
        return roles.hashCode();
    }

What I have tried:

I implemented equals and hashcode in my UrseRoleEntity and UserEntity but the result is the same.