}
        return b;
    }

    /**
     * Creates a range of dialect versions between min and max.
     *
     * @param min
     *            may be null for open end
     * @param max
     *            may be null for open end
     * @return range of versions
     */
    public static Set<DialectVersion> range(final DialectVersion min, final DialectVersion max) {

        verify(pipe, times(1)).ensureTreeConnected();
        verify(tree, times(2)).acquire();
    }

    @Test
    @DisplayName("getInput/getOutput return cached streams when open; throw when closed")
    void getInputOutput_caching_and_closed() throws Exception {
        // Arrange: minimal stubs so stream construction works
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\foo");

    protected int doSendReceiveFragment(final byte[] buf, final int off, final int length, final byte[] inB) throws IOException {
        if (this.handle.isStale()) {
            throw new IOException("DCERPC pipe is no longer open");
        }

        int have = this.handle.sendrecv(buf, off, length, inB, getMaxRecv());

        final int fraglen = Encdec.dec_uint16le(inB, 8);
        if (fraglen > getMaxRecv()) {

import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;

/**
 * SMB1 Read AndX request message.
 *
 * This command is used to read data from a file that has been
 * previously opened with an Open command.
 */
public class SmbComReadAndX extends AndXServerMessageBlock {

    private long offset;
    private int fid;
    int openTimeout;
    int maxCount, minCount, remaining;

    /**

    /** Verify all writes flag */
    int FLAGS_VERIFY_ALL_WRITES = 0x0010;
    /** Tree copy flag */
    int FLAGS_TREE_COPY = 0x0020;

    // open function
    /** Open function fail if exists */
    int OPEN_FUNCTION_FAIL_IF_EXISTS = 0x0000;
    /** Open function overwrite if exists */
    int OPEN_FUNCTION_OVERWRITE_IF_EXISTS = 0x0020;

    /** Process ID */
    int PID = (int) (Math.random() * 65536d);

        }

        /**
         * Verifies that the isOpen method returns true for an open handle.
         */
        @Test
        public void testIsOpen_ReturnsTrueWhenOpen() {
            when(smbPipeHandle.isOpen()).thenReturn(true);
            assertTrue(smbPipeHandle.isOpen(), "isOpen() should return true when the handle is open.");
        }

        /**

    /**
     * @return
     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen() throws CIFSException {
        // ensure file is open
        if (this.handle == null || !this.handle.isValid()) {
            // one extra acquire to keep this open till the stream is released
            this.handle =

            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcLsarClose.class));

        // Act
        handle.close();

        // Assert
        // Verify sendrecv was called once for open and once for close
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarOpenPolicy2.class));
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarClose.class));
    }

    @Test

        this.treeHandle = th.acquire();
        try {
            this.next = open();
        } catch (final Exception e) {
            this.treeHandle.release();
            throw e;
        }

    }

    private FileEntry open() throws CIFSException {
        this.treeHandle.send(this.request, this.response);
        checkStatus();
        final FileEntry n = advance();

JCIFS
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=====

JCIFS is an Open Source client library that implements the CIFS/SMB networking protocol in 100% Java.