*/
    static class TestSigningDigest extends SigningDigest {
        boolean called;
        int lastLength;

        TestSigningDigest() throws SmbException {
            super(new byte[16], false);
        }

        @Override
        void sign(byte[] data, int offset, int length, ServerMessageBlock request, ServerMessageBlock response) {
            called = true;

    void ensureOpen_whenClosed_throws() throws Exception {
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\bar");
        handle.close();
        SmbException ex = assertThrows(SmbException.class, handle::ensureOpen);
        assertTrue(ex.getMessage().contains("Pipe handle already closed"));
    }

    @Test
    @DisplayName("sendrecv uses SMB2 ioctl when tree is SMB2")

import jcifs.context.BaseContext;
import jcifs.netbios.NbtAddress;
import jcifs.smb.DfsReferral;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbAuthException;
import jcifs.smb.SmbException;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbFileInputStream;

/**
 * This servlet may be used to "browse" the entire hierarchy of resources
 * on an SMB network like one might with Network Neighborhood or Windows

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.SmbConstants;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtlmPasswordAuthenticator;
import jcifs.smb.SmbException;

/**
 * Unit tests exercising {@link SmbComSessionSetupAndX}.  The class under test
 * contains several protected helper methods and a complex constructor

        assertFalse(file.exists(), "Non-existent file should not exist");
        assertThrows(SmbException.class, () -> file.length(), "Getting length of non-existent file should throw exception");
        assertThrows(SmbException.class, () -> file.getInputStream(), "Getting input stream of non-existent file should throw exception");
    }

    @Test

import jcifs.internal.CommonServerMessageBlockResponse;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.SMBSigningDigest;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.SmbException;
import jcifs.util.Hexdump;

/**
 * Base class for SMB2/SMB3 protocol messages.
 *
 * This abstract class provides common functionality for all SMB2/SMB3

        case SMB_COM_NT_TRANSACT_SECONDARY -> "SMB_COM_NT_TRANSACT_SECONDARY";
        default -> "UNKNOWN";
        };
        final String str = errorCode == 0 ? "0" : SmbException.getMessageByCode(errorCode);
        return "command=" + c + ",received=" + received + ",errorCode=" + str + ",flags=0x" + Hexdump.toHexString(flags & 0xFF, 4)

import jcifs.internal.RequestWithPath;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.SMBSigningDigest;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.SmbException;
import jcifs.util.Hexdump;
import jcifs.util.Strings;

/**
 * Base class for all SMB1/CIFS protocol message blocks.
 * This abstract class provides the fundamental structure and common functionality for SMB1 request