} else if (first != null && second != null) {
            // Both non-null - should be same instance
            assertSame(first, second, "Second getSubject should return same cached instance as first");
        } else {
            fail("Inconsistent behavior: first=" + first + ", second=" + second);
        }

        // Third call should return the same cached Subject instance

        return array;
    }

    /**
     * Returns the index of the first occurrence of the specified object in the array.
     *
     * @param <T>
     *            the type of the array elements
     * @param array
     *            the array
     * @param obj
     *            the object to search for
     * @return the index of the first occurrence of the object in the array
     */

        assertTrue(it.hasNext());
        FileEntry e2 = it.next();

        // Assert
        assertNotNull(e1);
        assertNotNull(e2);
        assertEquals("first", e1.getName());
        assertEquals(acceptedName, e2.getName(), "Should return the first name accepted by filter");

        // Verify filter interactions: not called for '.' and '..', called for others
        verify(nameFilter, never()).accept(parent, ".");

        // Then: Will create new connection since real transport has no socket
        assertNotSame(first, second, "Should create new connection when first is disconnected");
    }

    @Test
    @DisplayName("Should create new connection when force signing differs")
    void testNoReuseWithDifferentSigning() throws Exception {
        // Given: An existing connection without signing enforced

                return mockResource1;
            }
        };

        // When/Then
        assertTrue(iterator.hasNext(), "Should have first element");
        SmbResource first = iterator.next();
        assertNotNull(first, "First element should not be null");
        assertEquals("file1.txt", first.getName());

        assertTrue(iterator.hasNext(), "Should have second element");
        SmbResource second = iterator.next();

        return header.previous;
    }

    /**
     * Removes the first element.
     *
     * @return the first element
     */
    public E removeFirst() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        final E first = header.next.element;
        header.next.remove();
        return first;
    }

    /**
     * Removes the last element.
     *

    /** Maximum number of rows to extract. */
    protected int maxRows = 10000;

    /** Delimiter character for CSV parsing. */
    protected Character delimiter = null;

    /** Whether the first row contains headers. */
    protected boolean hasHeader = true;

    /** Whether to auto-detect the delimiter. */
    protected boolean autoDetectDelimiter = true;

    /** Whether to extract column names as metadata. */

    void iteratesAndFetchesMoreThenCloses() throws Exception {
        // Arrange: program send() to simulate first, next, next(NO_MORE_FILES)
        List<String[]> batches = new ArrayList<>();
        batches.add(new String[] { ".", "..", "a", "b" }); // first batch, dot entries filtered
        batches.add(new String[] { "c" }); // second batch
        batches.add(new String[] {}); // last -> NO_MORE_FILES

        // Then
        assertTrue(result > 0);
        assertEquals((byte) 0x04, dst[0]); // First buffer format byte

        // Find the second buffer format byte
        int secondBufferFormatIndex = oldFileName.length() + 2; // 1 for first 0x04, 1 for null terminator
        assertEquals((byte) 0x04, dst[secondBufferFormatIndex]);
    }

    /**

        originalBuffer[offset++] = (byte) 1; // directory = true

        // Decode into first instance
        FileStandardInfo firstInstance = new FileStandardInfo();
        firstInstance.decode(originalBuffer, 0, originalBuffer.length);

        // Encode from first instance
        byte[] encodedBuffer = new byte[22];
        firstInstance.encode(encodedBuffer, 0);