computer/computer-core/src/main/java/org/apache/hugegraph/computer/core/input/loader/FileElementFetcher.java [108:115]:
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    public T next() {
        if (!this.hasNext()) {
            throw new NoSuchElementException();
        }
        T current = this.next;
        this.next = null;
        return current;
    }
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computer/computer-core/src/main/java/org/apache/hugegraph/computer/core/input/hg/HugeElementFetcher.java [74:81]:
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    public T next() {
        if (!this.hasNext()) {
            throw new NoSuchElementException();
        }
        T current = this.next;
        this.next = null;
        return current;
    }
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