ArrayIndexType doesn't implement hashCode correctly

public class ArrayKeyIndexType {
  @KVIndex
  public int[] key;

  @KVIndex("id")
  public String[] id;  

  @Override
  public boolean equals(Object o) {
    if (o instanceof ArrayKeyIndexType) {
      ArrayKeyIndexType other = (ArrayKeyIndexType) o;
      return Arrays.equals(key, other.key) && Arrays.equals(id, other.id);
    }
    return false;
  }

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