fail();
        } catch (final MultipleCrawlingAccessException e) {
            // ok
            final Throwable[] causes = e.getCauses();
            assertEquals(5, causes.length);
        }
        assertEquals(1, testListener.startCount);
        assertEquals(5, testListener.requestCount);
        assertEquals(5, testListener.exceptionCount);

        assertTrue(bulkLine.contains("reading2"));
    }

    @Test(expected = SuggesterException.class)
    public void testCreateBulkLineWithNullItem() {
        // Test that null item causes exception
        SuggestUtil.createBulkLine("test_index", "_doc", null);
    }

    @Test
    public void testCreateDefaultReadingConverter() {
        // Test creating default reading converter

        /* Samba has a tendency to return referral paths and pathConsumed values
         * in such a way that there can be a slash at the end of the path. This
         * causes problems matching keys in resolve() where an extra slash causes
         * a mismatch. This strips trailing slashes from all keys to eliminate
         * this problem.
         */
        int ki = key.length();

        @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);
            });
        }

        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();

    }

    /**
     * Builds a comprehensive error message from a throwable and its causes.
     * This method traverses the cause chain and concatenates all error messages.
     *
     * @param t the throwable to build message from
     * @return a string containing all error messages in the cause chain
     */
    protected String buildThrowableMessage(final Throwable t) {

        this.openFlags &= ~(SmbConstants.O_CREAT | SmbConstants.O_TRUNC); /* in case we close and reopen */
        this.writeSize = sendBufferSize - 70;

        this.useNTSmbs = th.hasCapability(SmbConstants.CAP_NT_SMBS);
        if (!this.useNTSmbs) {
            log.debug("No support for NT SMBs");
        }

        // there seems to be a bug with some servers that causes corruption if using signatures +
        // CAP_LARGE_WRITE

        UnsupportedOperationException ex = assertThrows(UnsupportedOperationException.class, iterator::remove);
        assertEquals("Not supported", ex.getMessage());
    }

    @Test
    @DisplayName("Null delegate causes NPE")
    void nullDelegate() {
        assertThrows(NullPointerException.class, () -> {
            new FileEntryAdapterIterator(parent, null, null) {
                @Override

        assertDoesNotThrow(() -> {
            new MsrpcLookupSids(null, testSids);
        });
    }

    @Test
    void constructor_shouldThrowExceptionWithNullSids() {
        // Act & Assert - Null SID array causes NPE when accessing length
        assertThrows(NullPointerException.class, () -> {
            new MsrpcLookupSids(mockPolicyHandle, null);
        });
    }

    @Test

        int c = -1;
        boolean eol = false;

        while (!eol) {
            switch (c = read()) {
            case -1:
            case '\n':
                eol = true;
                break;
            case '\r':
                eol = true;
                final long cur = this.fp;
                if (read() != '\n') {
                    this.fp = cur;