Java array clone is not deep clone,so all the elements in the array are same class

UnsafeSequenceTest.java

    @Test
    public void testArrayClone() {
        UnsafeSequence[] unsafeSequences = new UnsafeSequence[10];
        for (int i = 0; i < unsafeSequences.length; i++) {
            unsafeSequences[i] = new UnsafeSequence();
        }

        UnsafeSequence[] unsafeSequencesClone = unsafeSequences.clone();
        System.out.println(Arrays.toString(unsafeSequences));
        System.out.println(Arrays.toString(unsafeSequencesClone));

        unsafeSequencesClone[0].getNext();

        System.out.println(Arrays.toString(unsafeSequences));
        System.out.println(Arrays.toString(unsafeSequencesClone));
    }