assertEquals(maxDataCount, writtenMaxDataCount);
    }

    @Test
    @DisplayName("Test all read/write methods with null buffers")
    void testMethodsWithNullBuffers() {
        netShareEnum = new NetShareEnum(realConfig);

        // Write methods return 0 when buffer is null (no NullPointerException thrown)
        assertEquals(0, netShareEnum.writeSetupWireFormat(null, 0));

// EncodeMsg implements msgp.Encodable
func (z *healingTracker) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 29
	// write "ID"
	err = en.Append(0xde, 0x0, 0x1d, 0xa2, 0x49, 0x44)
	if err != nil {
		return
	}
	err = en.WriteString(z.ID)
	if err != nil {
		err = msgp.WrapError(err, "ID")
		return
	}
	// write "PoolIndex"
	err = en.Append(0xa9, 0x50, 0x6f, 0x6f, 0x6c, 0x49, 0x6e, 0x64, 0x65, 0x78)

`UploadFile` has the following `async` methods. They all call the corresponding file methods underneath (using the internal `SpooledTemporaryFile`).

* `write(data)`: Writes `data` (`str` or `bytes`) to the file.
* `read(size)`: Reads `size` (`int`) bytes/characters of the file.
* `seek(offset)`: Goes to the byte position `offset` (`int`) in the file.

// Metadata has data stripped, if any.
// The function tries to quit as fast as the context is canceled to avoid further drive IO
func (s *xlStorage) WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) (err error) {
	legacyFS := s.fsType != xfs && s.fsType != ext4

	s.RLock()
	legacy := s.formatLegacy
	s.RUnlock()

	// Verify if volume is valid and it exists.
	volumeDir, err := s.getVolDir(opts.Bucket)

        request.encode(tempBuffer, 50);

        // When
        int bytesWritten = request.writeBytesWireFormat(buffer, offset);

        // Then
        // The writeBytesWireFormat writes the structure and calculates padding
        // Base structure: 24 bytes, then pad8 alignment, then token: 5 bytes
        // Total bytes written includes padding for 8-byte alignment
        int expectedBytesWritten = 35;

     * A queue of elements currently in the map, ordered by write time. Elements are added to the
     * tail of the queue on write.
     */
    @GuardedBy("this")
    final Queue<ReferenceEntry<K, V>> writeQueue;

    /**
     * A queue of elements currently in the map, ordered by access time. Elements are added to the
     * tail of the queue on access (note that writes count as accesses).
     */
    @GuardedBy("this")

import okhttp3.internal.http.promisesBody
import okhttp3.internal.stripBody
import okio.Buffer
import okio.Source
import okio.Timeout
import okio.buffer

/** Serves requests from the cache and writes responses to the cache. */
class CacheInterceptor(
  internal val call: RealCall,
  internal val cache: Cache?,
) : Interceptor {
  @Throws(IOException::class)

     */
    Waiter(boolean unused) {}

    Waiter() {
      // avoid volatile write, write is made visible by subsequent CAS on waitersField field
      putThread(this, Thread.currentThread());
    }

    // non-volatile write to the next field. Should be made visible by a subsequent CAS on
    // waitersField.
    void setNext(@Nullable Waiter next) {

        assertThrows(NullPointerException.class, () -> {
            new Smb2NegotiateRequest(mockConfig, 0);
        });
    }

    @Test
    @DisplayName("Should properly align buffer writes")
    void testBufferAlignment() {
        // Given
        when(mockConfig.getMaximumVersion()).thenReturn(DialectVersion.SMB311);
        request = new Smb2NegotiateRequest(mockConfig, 0);

// EncodeMsg implements msgp.Encodable
func (z *BucketMetadata) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 25
	// write "Name"
	err = en.Append(0xde, 0x0, 0x19, 0xa4, 0x4e, 0x61, 0x6d, 0x65)
	if err != nil {
		return
	}
	err = en.WriteString(z.Name)
	if err != nil {
		err = msgp.WrapError(err, "Name")
		return
	}
	// write "Created"
	err = en.Append(0xa7, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64)