}

    @Test
    @DisplayName("open(): acquires and releases handle (no I/O)")
    void open_acquiresAndReleasesHandle() throws Exception {
        SmbRandomAccessFile raf = spy(newInstance("rw", false, true, false));
        SmbFileHandleImpl fh = mock(SmbFileHandleImpl.class);
        doReturn(fh).when(raf).ensureOpen();

        // Act
        raf.open();

        // Assert: open() ensures handle and closes it via try-with-resources

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

///

## Data <abbr title="also known as: serialization, parsing, marshalling">conversion</abbr> { #data-conversion }

If you run this example and open your browser at <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, you will see a response of:

```JSON
{"item_id":3}
```

/// check

     * @throws CIFSException if an error occurs connecting to the tree
     */
    SmbTreeHandleInternal ensureTreeConnected() throws CIFSException;

    /**
     * Ensures that the file handle is open and returns it.
     *
     * @return file handle
     * @throws CIFSException if an error occurs opening the file
     */
    SmbFileHandle ensureOpen() throws CIFSException;

    /**

    protected void doSendFragment(final byte[] buf, final int off, final int length, final boolean isDirect) throws IOException {
        if (out != null && !out.isOpen()) {
            throw new IOException("DCERPC pipe is no longer open");
        }

        if (in == null) {
            in = (SmbFileInputStream) pipe.getNamedPipeInputStream();
        }
        if (out == null) {

import javax.net.ssl.X509TrustManager
import okhttp3.Protocol
import okhttp3.internal.SuppressSignatureCheck

/**
 * OpenJDK 9+ and JDK8 build 252+.
 *
 * This may also be used for Android tests with Robolectric.
 */
open class Jdk9Platform : Platform() {
  @SuppressSignatureCheck
  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<@JvmSuppressWildcards Protocol>,
  ) {

import jcifs.internal.util.SMBUtil;

/**
 * SMB1 COM_SEEK command implementation.
 *
 * This command changes the current file position pointer for a file.
 * It allows seeking to different positions within an open file.
 *
 * @author mbechler
 */
public class SmbComSeek extends ServerMessageBlock {

    /**
     * Constructs a seek command.
     *
     * @param config the configuration

{* ../../docs_src/custom_response/tutorial007.py hl[2,14] *}

#### Using `StreamingResponse` with file-like objects { #using-streamingresponse-with-file-like-objects }

If you have a file-like object (e.g. the object returned by `open()`), you can create a generator function to iterate over that file-like object.

That way, you don't have to read it all first in memory, and you can pass that generator function to the `StreamingResponse`, and return it.

        new ByteSource() {
          @Override
          public InputStream openStream() throws IOException {
            if (counter[0]++ != 0) {
              throw new IllegalStateException("More than one source open");
            }
            return new FilterInputStream(source.openStream()) {
              @Override
              public void close() throws IOException {
                super.close();
                counter[0]--;