@Test
        @DisplayName("Null delegate causes NullPointerException during construction")
        void nullDelegate_throwsNPE() throws Exception {
            SmbFile parent = newParent();
            assertThrows(NullPointerException.class, () -> new ShareEnumIterator(parent, null, null));
        }

        @Test
        @DisplayName("Null parent with non-empty iterator causes NullPointerException during adapt")

    void testToStringWithRootCause() {
        RuntimeException cause = new RuntimeException("boom");
        SmbException ex = new SmbException(0, cause);
        assertTrue(ex.toString().contains("RuntimeException"), "String representation must include the root cause stack trace");
    }

    /**
     * Verify that {@link #toString()} with no root cause equals the default

    /**
     * Constructs a new CrawlingAccessException with the specified detail message and cause.
     *
     * @param message the detail message
     * @param cause the cause
     */
    public CrawlingAccessException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**
     * Constructs a new CrawlingAccessException with the specified detail message.
     *

     * Covers all defined error classes and codes, including default cases.
     */
    private static Stream<Arguments> provideErrorClassAndCodeForGetErrorString() {
        return Stream.of(
                // SUCCESS
                Arguments.of(NbtException.SUCCESS, 0, "SUCCESS"),

                // ERR_NAM_SRVC

        assertEquals(0, exception.getErrorCode(), "Error code should be 0 for message and cause constructor.");
        assertEquals(message, exception.getMessage(), "Message should match the input.");
        assertEquals(cause, exception.getCause(), "Cause should match the input.");
        assertEquals(cause, exception.getRootCause(), "getRootCause() should return the same cause as getCause().");
    }

    /**

FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dlog4j2.disable.jmx=true"
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dlog4j2.formatMsgNoLookups=true"
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dlog4j.skipJansi=true"

# Causes the JVM to dump its heap on OutOfMemory.
#FESS_JAVA_OPTS="$FESS_JAVA_OPTS -XX:+HeapDumpOnOutOfMemoryError"
# The path to the heap dump location, note directory must exists and have enough
# space for a full heap dump.

        @Test
        @DisplayName("Should handle empty buffer in readDataWireFormat")
        void testReadDataWireFormatEmptyBuffer() {
            byte[] buffer = new byte[0];

            // Empty buffer causes ArrayIndexOutOfBoundsException when trying to read
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> {
                response.readDataWireFormat(buffer, 0, 0);
            });
        }

            // Act & Assert
            assertThrows(NullPointerException.class, () -> resp.readBytesWireFormat(null, 0));
        }

        @Test
        @DisplayName("Insufficient buffer causes ArrayIndexOutOfBoundsException")
        void shortBuffer_throwsAIOOBE() {
            // Arrange: length 1 means readInt2 will access index 1 and fail
            byte[] buffer = new byte[1];

                "System.arraycopy should throw for insufficient destination space");
    }

    @Test
    @DisplayName("encode() throws when dstIndex causes overflow")
    void encodeThrowsWhenDstIndexCausesOverflow() {
        byte[] src = makeSeq(5);
        Encodable enc = new ByteEncodable(src, 0, 5);

        assertTrue(ex.getMessage().contains("Invalid kerberos request"));
    }

    @Test
    @DisplayName("seq ctor: unknown field tag causes failure")
    void sequenceConstructor_unknownField_throws() {
        // Arrange: only an unexpected tag is present
        ASN1EncodableVector v = new ASN1EncodableVector();