| class Test { | |
| Object d; | |
| public boolean equals(Object o) { | |
| if (this == o) return true; | |
| if (o == null || getClass() != o.getClass()) return false; | |
| final Test test = (Test) o; | |
| if (d != null ? !d.equals(test.d) : test.d != null) return false; | |
| return true; | |
| } | |
| public int hashCode() { | |
| return d != null ? d.hashCode() : 0; | |
| } | |
| } |