@SuppressWarnings("rawtypes") // using raw types to avoid a bug in our nullness checker :(
        InternalEntry entry = map.getEntry(sample);
        if (entry != null) {
          Object canonical = entry.getKey();
          if (canonical != null) { // only matters if weak/soft keys are used
            // The compiler would know this is safe if not for our use of raw types (see above).
            @SuppressWarnings("unchecked")

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

/**
 * A {@code BiMap} backed by an {@code EnumMap} instance for keys-to-values, and a {@code HashMap}
 * instance for values-to-keys. Null keys are not permitted, but null values are. An {@code
 * EnumHashBiMap} and its inverse are both serializable.
 *
 * <p>See the Guava User Guide article on <a href=

        return new HashMap<>(context);
    }

    /**
     * Gets a specific context value
     *
     * @param key the context key
     * @return the context value or null
     */
    public Object getContextValue(String key) {
        return context.get(key);
    }

    /**
     * Gets the error timestamp
     *
     * @return the timestamp
     */

        });
    }

    @Test
    @DisplayName("Test null data handling")
    public void testNullDataHandling() {
        assertThrows(CIFSException.class, () -> {
            compressionService.compress(null, CompressionService.COMPRESSION_LZ77);
        });

        assertThrows(CIFSException.class, () -> {
            compressionService.decompress(null, CompressionService.COMPRESSION_LZ77);
        });
    }

        }
    }

    protected void updateRepositoryMetadata(ArtifactRepository localRepository, ArtifactRepository remoteRepository)
            throws IOException, XMLStreamException {
        Metadata metadata = null;

        File metadataFile = new File(
                localRepository.getBasedir(), localRepository.pathOfLocalRepositoryMetadata(this, remoteRepository));

        if (metadataFile.length() == 0) {

                System.out.println("RETURN");
                return a;
            }
        }
        System.out.println("Return null");
        return null;
    }

    @Test
    public void test_loadConfigParams() {
        Map<String, Object> paramMap;
        String configParam;

        // Test with empty map and null config
        paramMap = new HashMap<>();
        ParameterUtil.loadConfigParams(paramMap, null);
        assertEquals(0, paramMap.size());

        // Test with empty map and empty config
        paramMap = new HashMap<>();

    return fromMapEntries(multimap.asMap().entrySet(), null);
  }

  /**
   * Returns an immutable multimap containing the specified entries. The returned multimap iterates
   * over keys in the order they were first encountered in the input, and the values for each key
   * are iterated in the order they were encountered.
   *
   * @throws NullPointerException if any key, value, or entry is null
   * @since 19.0
   */

          override fun authenticate(
            route: Route?,
            response: Response,
          ): Request? {
            if (response.request.header("Authorization") != null) {
              return null // Give up, we've already attempted to authenticate.
            }

            println("Authenticating for response: $response")
            println("Challenges: ${response.challenges()}")

    return try {
      val keyManager =
        newKeyManager(
          null,
          serverCert,
          serverIntermediateCa.certificate,
        )
      val trustManager =
        newTrustManager(
          null,
          Arrays.asList(serverRootCa.certificate, clientRootCa.certificate),
          emptyList(),
        )