}

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testComputeIfAbsent_supportedPresent() {
    assertEquals(
        "computeIfAbsent(present, function) should return existing value",
        v0(),
        getMap()
            .computeIfAbsent(
                k0(),
                k -> {
                  throw new AssertionFailedError();
                }));
    expectUnchanged();

  /*
   * This is a public type so that the Android test runner can create an instance directly as it
   * insists upon doing. It then runs the test, which behaves exactly like this package's existing
   * PackageSanityTests. (The test would run on the JVM, too, if not for the suppression below, and
   * that would be a problem because it violates small-test rules. Note that we strip the

import org.jspecify.annotations.Nullable;

/**
 * A {@link ScheduledExecutorService} that returns {@link ListenableFuture} instances from its
 * {@code ExecutorService} methods. To create an instance from an existing {@link
 * ScheduledExecutorService}, call {@link
 * MoreExecutors#listeningDecorator(ScheduledExecutorService)}.
 *
 * @author Chris Povirk
 * @since 10.0
 */
@GwtIncompatible

        );

        // Set the session ID of the existing session
        request.setSessionId(getSessionId());

        // CRITICAL: Set the binding flag per MS-SMB2
        request.setSessionBinding(true);

        // The actual transport send would need proper integration
        // This would be sent on the NEW channel's transport, not the existing one

        }

        @Test
        @DisplayName("Should overwrite existing cache entry")
        void testReplaceCacheOverwrite() {
            String key = "existing-key";
            DfsReferralDataInternal oldEntry = mock(DfsReferralDataInternal.class);

            // Add existing entry
            cacheMap.put(key, oldEntry);

            // Setup new entry

        assertEquals(1, transport.getNumSessions());
        s1.close();

        // Act: request again with same context -> reuse existing
        SmbSessionImpl s2 = transport.getSmbSession(ctx);
        assertNotNull(s2);
        assertEquals(1, transport.getNumSessions(), "Should reuse existing session");
        s2.close();
    }

    @Test
    @DisplayName("DFS referrals: invalid double-slash prefix triggers exception")

  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPutIfAbsent_supportedPresent() {
    assertEquals(
        "putIfAbsent(present, value) should return existing value",
        v0(),
        getMap().putIfAbsent(k0(), v3()));
    expectUnchanged();
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  public void testPutIfAbsent_unsupportedAbsent() {

  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPutIfAbsent_supportedPresent() {
    assertEquals(
        "putIfAbsent(present, value) should return existing value",
        v0(),
        getMap().putIfAbsent(k0(), v3()));
    expectUnchanged();
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  public void testPutIfAbsent_unsupportedAbsent() {

        Map<String, String> dataMap = new HashMap<>();
        dataMap.put("key1", "value1");
        dataMap.put("key2", "");
        dataMap.put("key3", null);

        // Test with existing value
        String result1 = (String) method.invoke(crawler, dataMap, "key1", "default");
        assertEquals("value1", result1);

        // Test with empty value

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* To help [translate the documentation](contributing.md#translations){.internal-link target=_blank} to your language.
    * You can also help to review the translations created by others.
* To propose new documentation sections.
* To fix an existing issue/bug.
    * Make sure to add tests.