if resCh != nil {
					resErr = nil
					select {
					case resCh <- results:
					case <-ctx.Done():
					}
					resCh = nil
					returned = true
				}
				continue
			}
			results.o = append(results.o, entry)
		}
		if resCh != nil {
			resErr = io.EOF
			select {
			case <-ctx.Done():
				// Nobody wants it.
			case resCh <- results:
			}
		}
	}()

    
    @Override
    public void close() {
        invalidate();
        valid = false;
    }
}
```

### 4.3 RDMA Transport
```java
package jcifs.internal.smb2.rdma;

import jcifs.smb.SmbTransport;
import jcifs.internal.smb2.ServerMessageBlock2;

public class RdmaTransport extends SmbTransport {
    private final RdmaConnection rdmaConnection;

    File asciiFile = getTestFile("ascii.txt");
    assertThrows(NullPointerException.class, () -> Files.newReader(asciiFile, null));

    assertThrows(NullPointerException.class, () -> Files.newReader(null, UTF_8));

    BufferedReader r = Files.newReader(asciiFile, US_ASCII);
    try {
      assertEquals(ASCII, r.readLine());
    } finally {
      r.close();
    }
  }

  public void testNewWriter() throws IOException {

      private var closed = false

      override fun close() {
        if (closed) return
        try {
          super.close()
        } finally {
          closedLatch.countDown()
        }
      }
    }.buffer()

  override val sink: BufferedSink =
    object : ForwardingSink(delegate.sink) {
      private var closed = false

      override fun close() {
        if (closed) return
        try {

        // Close and verify subsequent calls throw
        handle.close();
        CIFSException ex1 = assertThrows(CIFSException.class, handle::getInput, "getInput after close must throw");
        assertTrue(ex1.getMessage().contains("Already closed"));
        CIFSException ex2 = assertThrows(CIFSException.class, handle::getOutput, "getOutput after close must throw");

            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>
                            <la:message key="labels.design_configuration"/>
                        </h1>
                    </div>
                </div>
            </div>
        </div>
        <section class="content">
            <div class="row">
                <div class="col-md-12">

 *
 * @author mbechler
 */
public interface SmbSession extends AutoCloseable {

    /**
     * {@inheritDoc}
     *
     * @see java.lang.AutoCloseable#close()
     */
    @Override
    void close();

    /**
     * Returns the configuration object used by this SMB session.
     *
     * @return the configuration used by this session
     */
    Configuration getConfig();

/**
 * Configuration for slf4j-log4j2.
 *
 * @since 3.1.0
 */
public class Log4j2Configuration extends BaseSlf4jConfiguration {
    @Override
    public void setRootLoggerLevel(Level level) {
        String value =
                switch (level) {
                    case DEBUG -> "debug";
                    case INFO -> "info";
                    default -> "error";
                };

    }
  }

  private class ProgressRequestBody(
    private val delegate: RequestBody,
    private val progressListener: ProgressListener,
  ) : RequestBody() {
    override fun contentType() = delegate.contentType()

    @Throws(IOException::class)
    override fun contentLength(): Long = delegate.contentLength()

    @Throws(IOException::class)
    override fun writeTo(sink: BufferedSink) {

		return
	}

	switch rAuthType {
	case authTypeStreamingSigned, authTypeStreamingSignedTrailer:
		// Initialize stream signature verifier.
		reader, s3Error = newSignV4ChunkedReader(r, rAuthType == authTypeStreamingSignedTrailer)
		if s3Error != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
			return
		}
	case authTypeStreamingUnsignedTrailer: