void testCodesArrayExistence() {
        assertNotNull(DosError.DOS_ERROR_CODES, "DOS_ERROR_CODES should be non‑null");
        assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test
    @DisplayName("Each error code mapping contains exactly two ints")
    void testEachPairLength() {
        for (int i = 0; i < DosError.DOS_ERROR_CODES.length; i++) {

      dispatcher = dispatcherA
    }

  private val dispatcherB = ClosableDispatcher()

  @StartStop val serverB =
    MockWebServer().apply {
      dispatcher = dispatcherB
    }

  /** This one won't start because it isn't annotated. */
  private val dispatcherC = ClosableDispatcher()
  val serverC =
    MockWebServer().apply {
      dispatcher = dispatcherC
    }

  @Test
  fun happyPath() {

import java.util.concurrent.ConcurrentMap;
import org.jspecify.annotations.Nullable;

/**
 * A concurrent map which forwards all its method calls to another concurrent map. Subclasses should
 * override one or more methods to modify the behavior of the backing map as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *

import java.util.ListIterator;
import org.jspecify.annotations.Nullable;

/**
 * A list iterator which forwards all its method calls to another list iterator. Subclasses should
 * override one or more methods to modify the behavior of the backing iterator as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *

        // All patterns should be accepted
        assertDoesNotThrow(() -> request.setFileId(allZeros), "Should handle all-zeros file ID");
        assertDoesNotThrow(() -> request.setFileId(allOnes), "Should handle all-ones file ID");
        assertDoesNotThrow(() -> request.setFileId(alternating), "Should handle alternating pattern file ID");
    }

    @Test
    @DisplayName("Should create custom implementation of RequestWithFileId")

        assertTrue(cos.isInMemory());
        assertFalse(cos.done);
        cos.close();
    }

    @Test
    public void testSingleByteWrites() throws IOException {
        // Writing one byte at a time
        ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        for (int i = 0; i < 3; i++) {
            cos.write(i);
        }
        assertTrue(cos.isInMemory());

        List<String> providers = RdmaProviderFactory.getAvailableProviders();
        assertNotNull(providers, "Available providers list should not be null");
        assertFalse(providers.isEmpty(), "Should have at least one available provider");
        assertTrue(providers.contains("TCP Fallback"), "Should include TCP fallback");
    }

import java.util.concurrent.TimeUnit;
import org.jspecify.annotations.Nullable;

/**
 * A {@link BlockingQueue} which forwards all its method calls to another {@link BlockingQueue}.
 * Subclasses should override one or more methods to modify the behavior of the backing collection
 * as desired per the <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator
 * pattern</a>.
 *

        #  The settings are objectTypeTargetList, tableExceptList,
        #  tableTargetList, and columnExceptMap.
        #  They have the same specification as ones of the main schema.
        #  Elements of this map are as below: 
        #    o objectTypeTargetList: (NotRequired - Default 'map:{TABLE;VIEW}')
        #    o tableExceptList: (NotRequired - Default list:{})

    // of the values gets evicted. With weak keys, we use identity equality, which means using
    // System.identityHashCode, which means the assignment of keys to segments is nondeterministic,
    // so more than (maximumSize / #segments) keys could get assigned to the same segment, which
    // would cause one to be evicted.
    return new CacheBuilderFactory()