NullPointer possible

[svenjeppsson]

Hey found this peace of code where something confuses me.

go-hbci/client/client.go

Lines 153 to 163 in 180d831

	for _, unmarshaledSegment := range accountTransactionResponses {
	seg := unmarshaledSegment.(segment.AccountTransactionResponse)
	accountTransactions = append(accountTransactions, seg.Transactions()...)
	if seg != nil {
	go func() {
	responses <- resFn(c.AccountTransactions(account, timeframe, allAccounts, continuationReference))
	}()
	} else {
	responses <- resFn([]domain.AccountTransaction{}, nil)
	}
	}

In line 156 checks whether seq is nil but in line 155 seq is already accessed "seg.Transactions()..."

I am still new to golang. In Java line 155 would produce a nullpointerexception when seq is null.
Isen't it the same in go?