log.debug(String.format("VALIDATE_NEGOTIATE_INFO response code 0x%x", e.getNtStatus()));
            }
            log.trace("VALIDATE_NEGOTIATE_INFO returned error", e);
            if (req.getResponse().isReceived() && req.getResponse().isVerifyFailed()
                    || e.getNtStatus() == NtStatus.NT_STATUS_ACCESS_DENIED) {
                // this is the signature error

            }
        }
        return "unknown";
    }

    private long extractNtStatus(Throwable cause) {
        if (cause instanceof SmbException) {
            return ((SmbException) cause).getNtStatus();
        }
        return 0;
    }

    private String extractServerMessage(Throwable cause) {
        if (cause instanceof SmbException) {
            // Try to get server message from SMB exception

                if (LogStream.level > 1) {
                    log.println("NtlmHttpFilter: " + ntlm.getName() + ": 0x" + jcifs.smb1.util.Hexdump.toHexString(sae.getNtStatus(), 8)
                            + ": " + sae);
                }
                if (sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION) {
                    /* Server challenge no longer valid for
                     * externally supplied password hashes.

                log.warn("Failed to set file attributes on " + path, e);
            } catch (final SmbException se) {
                log.trace("copyTo0", se);
                if (se.getNtStatus() != NtStatus.NT_STATUS_ACCESS_DENIED && se.getNtStatus() != NtStatus.NT_STATUS_OBJECT_NAME_COLLISION) {
                    throw se;
                }
            }
        }

                }
            } catch (final SmbAuthException sae) {
                log.warn("NtlmHttpFilter: " + ntlm.getName() + ": 0x" + jcifs.util.Hexdump.toHexString(sae.getNtStatus(), 8) + ": " + sae);
                if (sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION) {
                    /*
                     * Server challenge no longer valid for
                     * externally supplied password hashes.

                // retrying make no sense, as it will never become available again.
                if (params.contains(RequestParam.NO_RETRY)
                        || !(smbe.getCause() instanceof TransportException) && smbe.getNtStatus() != NtStatus.NT_STATUS_INVALID_PARAMETER) {
                    log.debug("Not retrying", smbe);
                    throw smbe;
                }
                log.debug("send", smbe);
                last = smbe;

                            n = resp.getDataLength();
                        } catch (final SmbException e) {
                            if (e.getNtStatus() == 0xC0000011) { // NT_STATUS_END_OF_FILE
                                log.debug("Reached end of file", e);
                                n = -1;
                            } else {

            } catch (final SmbAuthException sae) {
                log.warn("Auth failed", sae);
            } catch (final SmbException se) {
                log.warn("Connection failed", se);
                if (se.getNtStatus() != NtStatus.NT_STATUS_UNSUCCESSFUL) {
                    throw se;
                }
            }
            if (dirents[i].isDirectory()) {
                dirCount++;
            } else {

        }).when(handle).sendrecv(any());

        SmbException ex = assertThrows(SmbException.class, () -> cache.resolveSids(handle, policy, sids));
        assertEquals(NtStatus.NT_STATUS_ACCESS_DENIED, ex.getNtStatus());
    }

    @Test
    @DisplayName("resolveSids(CIFSContext,server,sids,offset,length) resolves missing, caches, and reuses cache")
    void resolveSids_withOffsetAndCache_behavesCorrectly() throws Exception {

                }
            } catch (final SmbException se) {
                if (LogStream.level > 2) {
                    se.printStackTrace(log);
                }
                if (se.getNtStatus() != NtStatus.NT_STATUS_UNSUCCESSFUL) {
                    throw se;
                }
            }
            if (dirents[i].isDirectory()) {
                dirCount++;
            } else {