newChunkedSink()
      }

      // Stream a request body of unknown length.
      contentLength != -1L -> {
        newKnownLengthSink()
      }

      // Stream a request body of a known length.
      else -> {
        // Stream a request body of a known length.
        throw IllegalStateException(
          "Cannot stream a request body without chunked encoding or a known content length!",

  @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    Serialization.writeMultiset(this, stream);
  }

  @GwtIncompatible
  @J2ktIncompatible
    private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();
    int distinctElements = stream.readInt();
    setBackingMap(new LinkedHashMap<E, Count>());

    }

    /**
     * Method write.
     *
     * @param stream a stream object.
     * @param persistedToolchains a persistedToolchains object.
     * @throws IOException java.io.IOException if any.
     */
    public void write(OutputStream stream, PersistedToolchains persistedToolchains) throws IOException {
        try {
            delegate.write(stream, persistedToolchains.getDelegate());
        } catch (XMLStreamException e) {

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.api.Lifecycle;
import org.apache.maven.api.MonotonicClock;
import org.apache.maven.api.services.LifecycleRegistry;
import org.apache.maven.api.services.MavenException;

import java.util.List;
import java.util.Locale;
import java.util.function.Consumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class VagrantBasePlugin implements Plugin<Project> {

    @Override
    public void apply(Project project) {

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.Collection;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.api.services.MessageBuilder;
import org.apache.maven.api.services.MessageBuilderFactory;
import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.api.xml.XmlService;

 */
package org.codelibs.fess.app.service;

import static org.codelibs.core.stream.StreamUtil.split;
import static org.codelibs.core.stream.StreamUtil.stream;

import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

# Streaming

## Stream JSON Lines

To stream JSON Lines, declare the return type and use `yield` to return the data.

```python
@app.get("/items/stream")
async def stream_items() -> AsyncIterable[Item]:
    for item in items:
        yield item
```

## Server-Sent Events (SSE)

To stream Server-Sent Events, use `response_class=EventSourceResponse` and `yield` items from the endpoint.

  @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    Serialization.writeMultimap(this, stream);
  }

  @GwtIncompatible
  @J2ktIncompatible
    private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();
    int keyCount = stream.readInt();
    if (keyCount < 0) {

        // Verify ensureTreeConnected() delegates to SmbPipeHandleImpl
        SmbPipeInputStream stream = newStreamWithMinimalStubs(true);
        when(handle.ensureTreeConnected()).thenReturn(tree);

        SmbTreeHandleImpl result = stream.ensureTreeConnected();
        assertSame(tree, result);
        verify(handle, times(1)).ensureTreeConnected();
    }

    @Test
    @DisplayName("ensureOpen delegates to handle")