}
        }, "Multiple close operations should not cause issues");

        // Verify iterator still works after multiple closes
        assertFalse(emptyIterator.hasNext(), "Iterator should still work after multiple closes");
        assertNull(emptyIterator.next(), "Iterator should still return null after multiple closes");
    }

    @Test

    }

    @Test
    @DisplayName("Test wire format structure matches SMB2 specification")
    void testWireFormatStructure() {
        byte[] buffer = new byte[256];
        Arrays.fill(buffer, (byte) 0xCC); // Fill with pattern to detect unwritten areas

        int written = request.writeBytesWireFormat(buffer, 0);

        // Verify structure according to SMB2 FLUSH specification

    /** CRUD operation mode (CREATE, EDIT, etc.) */
    @ValidateTypeFailure
    public Integer crudMode;

    /** Input terms (comma-separated) that will be mapped to the output term */
    @Required
    @Size(max = 1000)
    public String inputs;

    /** Output term that input terms will be mapped to */
    @Size(min = 1, max = 1000)
    public String output;

    /**

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

                // Clear sensitive data
                if (this.sessionKey != null) {
                    java.util.Arrays.fill(this.sessionKey, (byte) 0);
                    this.sessionKey = null;
                }

                if (this.preauthIntegrityHash != null) {
                    java.util.Arrays.fill(this.preauthIntegrityHash, (byte) 0);
                    this.preauthIntegrityHash = null;
                }

public class CharMappingItem extends DictionaryItem {
    /**
     * Array of input character sequences that will be mapped to the output sequence.
     * These represent the original/current input values for this mapping rule.
     */
    private final String[] inputs;

    /**
     * The output character sequence that input characters will be mapped to.
     * This represents the original/current output value for this mapping rule.
     */

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

     * legal NetBIOS name string is used a name query request will retreive
     * the IP, node type, and whether or not this NbtAddress represents a
     * group name. This degree of state can be obtained with a Name Query
     * Request or Node Status Request.
     *
     * 3) All - The NbtAddress will be populated with all state such as mac

     * method. It is an efficient relative that also will pad the left side so
     * that the result is <code>size</code> digits.
     *
     * @param val the integer value to convert to hexadecimal
     * @param size the desired length of the resulting hex string (will be left-padded with zeros)
     * @return a hexadecimal string representation of the value, padded to the specified size

            // The implementation doesn't check for null in constructor
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);
            assertNotNull(buffer);

            // Will throw NPE when trying to call size() or encode()
            assertThrows(NullPointerException.class, () -> {
                buffer.size();
            });
        }

        @ParameterizedTest