The getClass() method returns other class

Question

I have an unexpected and confusing issue with the instance comparing.

So, by order:

I try to compare two instance of the same class and override the hashcode() and equals() methods:

public class AdminUser {
.............
  @Override
    public boolean equals(Object obj) {
        if(this == obj){
            return true;
        }

        if(obj == null){
            return false;
        }

        Class c1 = obj.getClass(); //-----------{1}
        Class c2 = this.getClass(); //----------{2}


        if (this.getClass() != obj.getClass()){
            return false;
        }

        AdminUser other = (AdminUser)obj;
        return Objects.equals(this.username, other.username) &&
                Objects.equals(this.username, other.username) &&
                Objects.equals(this.username, other.username);
    }
}

• The method, from where I compare:

public class AdminCRUD extends BaseWithPerformanceTest {
    private void assertIfUserExist(AdminUser cau) {
        AdminUser createdUser = createUserForm.getUserFromForm();  //----{3}
        if(!cau.equals(createdUser)){
            saveScreenshot("Users_dont_match");
        }
    }
}

• The instance where I take AdminUser ({3}):

public class UsersPage extends TopBarConsoleMenu {
..................
    public class CreateUserForm extends BaseForm {
        public AdminUser getUserFromForm() {
            ......................

            return new AdminUser(){{
                setEmail(ACTUAL_EMAIL);
                setName(ACTUAL_NAME);
                setUsername(ACTUAL_USER_NAME);
                setUserType(EnumUtils.getEnumByMethodName(AdminUserType.class, "getAddUserDropDownValue", ACTUAL_USER_TYPE));
                setRegion(EnumUtils.getEnumByMethodName(AdminRegion.class, "getDropdownValue", ACTUAL_REGION));
            }};
        }
    }
}

So the issue:

(please see AdminUser class)

• In the point {1}, c1 variable got the pages.admin.UsersPage$CreateUserForm$1 instance!
• In the point {2} c2 variable as expected utils.data.admin.AdminUser$1

Except other - the obj instance, actually contains correct instance! - After boxing AdminUser other = (AdminUser)obj; I can get any correct data from the other variable - there are really AdminUser instance!

What are happens?