@Override
    public boolean equals(Object obj) {
      if (this == obj) {
        return true;
      }
      if (obj instanceof ThrowableWrapper) {
        Throwable throwable = ((ThrowableWrapper)obj).throwable;
        return this.throwable == throwable || fingerprint(this.throwable).equals(fingerprint(throwable));
      }
      return false;
    }
@Override
    public boolean equals(Object obj)