TestIterator it = TestIterator.create(tree, parent, "*", null, 0, initial, List.of(new FileEntry[][] { new FileEntry[] {} }))
                .throwOnCloseInternal();

        // Act: first next() returns initial, second triggers close which throws internally but is handled
        assertTrue(it.hasNext());
        assertEquals("first", it.next().getName());
        assertFalse(it.hasNext()); // After exhaustion, hasNext should return false

            if (exitValue != 0) {
                final StringBuilder out = new StringBuilder();
                if (processTimeout) {
                    out.append("Process is terminated due to ").append(timeout).append(" second exceeded.\n");
                }
                out.append("Exit Code: ").append(exitValue).append("\nOutput:\n").append(it.getOutput());
                throw new JobProcessingException(out.toString());
            }

### Performance
- Use batch operations for indexing (100-500 items)
- Don't call `refresh()` too frequently
- Limit `maxReadingNum` to prevent memory issues
- OpenSearch auto-refreshes every 1 second by default

### Compatibility
- Designed for OpenSearch 2.x+
- All text processing uses UTF-8

                buffer[1] = 0; // Valid PDU type
                Encdec.enc_uint16le((short) 50, buffer, 8); // Fragment length
                return 30; // Initial bytes received
            });

            // Mock second receive to complete fragment
            when(mockSmbPipeHandleInternal.recv(buf, 30, 20)).thenReturn(20);

            int result = handle.doReceiveFragment(buf);
            assertEquals(50, result);

        infoField.setAccessible(true);
        infoField.set(response, mockDecodable);

        Decodable first = response.getInfo();
        Decodable second = response.getInfo();

        assertSame(first, second, "Multiple calls should return the same instance");
    }

    @Test
    @DisplayName("Test getInfo with null info returns null")
    void testGetInfoWithNullInfo() {

    }

    private void setConverter(NetServerEnum2Response response, int value) throws Exception {
        Field field = response.getClass().getDeclaredField("converter");
        field.setAccessible(true);
        field.setInt(response, value);
    }

    private int getNumEntries(NetServerEnum2Response response) throws Exception {
        Method method = getSuperclassMethod(response.getClass(), "getNumEntries");

     * The outer map key is the virtual host key, and the value is a pair containing:
     * - First: Map of exact term matches (term -> content)
     * - Second: List of regex pattern matches (Pattern -> content template)
     */
    protected Map<String, Pair<Map<String, String>, List<Pair<Pattern, String>>>> relatedContentMap = Collections.emptyMap();

    /**

                if (attempt < 10) {
                    Thread.sleep(500); // First 10 attempts: 0.5 second intervals
                } else if (attempt < 30) {
                    Thread.sleep(1000); // Next 20 attempts: 1 second intervals
                } else {
                    Thread.sleep(2000); // Remaining attempts: 2 second intervals
                }
            }
        }

    }

    @Override
    public void connect() throws IOException {
        try {
            // In real implementation, this would establish the RDMA connection:
            // endpoint.connect(remoteAddress, 1000);  // 1 second timeout

            state = RdmaConnectionState.CONNECTED;
            log.debug("DiSNI RDMA connection established to {}", remoteAddress);

        } catch (Exception e) {
            state = RdmaConnectionState.ERROR;

    /**
     * Returns whether two strings are equal. If both are null, returns <code>true</code>.
     *
     * @param target1
     *            the first string
     * @param target2
     *            the second string
     * @return true if the strings are equal, false otherwise
     */
    public static boolean equals(final String target1, final String target2) {