}
            if (request == null || chainedResponse != null && chainedResponse.isReceived()) {
                return chainedResponse;
            }

            // fall trough if the tree connection is already established
            // and send it as a separate request instead
            String svc = null;
            final int t = this.tid;
            request.setTid(t);

   *       userspace buffer (byte[] or ByteBuffer), then copies them from that buffer into the
   *       destination channel.
   * </ol>
   *
   * This value is intended to be large enough to make the overhead of system calls negligible,
   * without being so large that it causes problems for systems with atypical memory management if
   * approaches 2 or 3 are used.
   */

    @Test
    @DisplayName("Test mixed success and failure pattern")
    void testMixedPattern() throws Exception {
        // Success
        circuitBreaker.call(() -> "success");

        // Two failures (not enough to open)
        for (int i = 0; i < 2; i++) {
            try {
                circuitBreaker.call(() -> {
                    throw new RuntimeException("Test failure");
                });

    long nanosPerSecond = NANOSECONDS.convert(1, SECONDS);
    assertThat(nanosPerSecond * Long.MAX_VALUE).isLessThan(0L);

    // Check that we wait long enough anyway (presumably as long as MAX_VALUE nanos):
    TimedWaiterThread waiter = new TimedWaiterThread(future, Long.MAX_VALUE, SECONDS);
    waiter.start();
    waiter.awaitWaiting();

    future.set(1);

import java.util.Set;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * A series of tests that support asserting that collections cannot be modified, either through
 * direct or indirect means.
 *
 * @author Robert Konigsberg
 */
@GwtCompatible
@NullMarked
public class UnmodifiableCollectionTests {

  public static void assertMapEntryIsUnmodifiable(Entry<?, ?> entry) {

# SMB3 Lease Feature - Detailed Design Document

## 1. Overview

SMB3 leases provide a client caching mechanism that replaces the traditional oplock mechanism. Leases enable better performance through client-side caching while maintaining cache coherency across multiple clients.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13**: SMB2 CREATE Request with Lease Context
- **MS-SMB2 Section 2.2.14**: SMB2 CREATE Response with Lease State

with HDFS. These workloads rely on HDFS atomic rename functionality to complete writing data to the datastore. Object storage operations are atomic by nature and they do not require/implement rename API. The default S3A committer emulates renames through copy and delete APIs. This interaction pattern causes significant loss of performance because of the write amplification. _Netflix_, for example, developed two new staging committers - the Directory staging committer and the Partitioned staging committer...

                Arguments.of("oid length exceeds buffer", new byte[] { 0x04, 0x01, 0x00, 0x10, 0x06 }, IllegalArgumentException.class),

                // Missing NAME_LEN (not enough bytes for 4-byte length)
                Arguments.of("missing NAME_LEN bytes", new byte[] { 0x04, 0x01, 0x00, (byte) der.length, der[0] },
                        IllegalArgumentException.class),

        // Prepare test data
        ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);

        // Header
        bb.putShort((short) 3); // version
        bb.putShort((short) 100); // size (large enough for all strings)
        bb.putShort((short) 1); // serverType
        bb.putShort((short) 0); // rflags (no name list)
        bb.putShort((short) 5); // proximity
        bb.putShort((short) 300); // ttl

     * @param data encoded data
     * @param offset offset in data
     * @return parsed NetworkInterfaceInfo
     */
    public static NetworkInterfaceInfo decode(byte[] data, int offset) {
        // Ensure we have enough data for the full structure
        if (data.length < offset + Smb2ChannelCapabilities.NETWORK_INTERFACE_INFO_SIZE) {
            return null;
        }