//                                                                        ============
    protected String convertEmptyToNull(String value) {
        return (value != null && value.length() == 0) ? null : value;
    }

    // ===================================================================================

  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {
      Entry<?, ?> that = (Entry<?, ?>) object;

  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {
      Entry<?, ?> that = (Entry<?, ?>) object;

      <activation>
        <property>
          <name>surefire.toolchain.version</name>
          <!-- the value provided by GitHub CI (which maybe we could even change, but supporting "8" seems nice for any users who try pass that value manually) -->
          <value>8</value>
        </property>
      </activation>
      <properties>
        <test.add.opens></test.add.opens>
      </properties>

{
    "properties": {
      "crawlingInfoId": {
        "type": "keyword"
      },
      "key": {
        "type": "keyword"
      },
      "value": {
        "type": "keyword"
      },
      "createdTime": {
        "type": "long"
      }
    }

* `File()`

The keys of the `dict` identify each example, and each value is another `dict`.

Each specific example `dict` in the `examples` can contain:

* `summary`: Short description for the example.
* `description`: A long description that can contain Markdown text.
* `value`: This is the actual example shown, e.g. a `dict`.

    }

    /**
     * Test EXPECTED_INDEX_COUNT constant value.
     * Verifies that the constant is properly defined with expected value.
     */
    @Test
    public void testExpectedIndexCountConstant() throws Exception {
        final Field field = Suggester.class.getDeclaredField("EXPECTED_INDEX_COUNT");
        field.setAccessible(true);
        final int value = (int) field.get(null);

    }

    /**
     * Sets or clears a specific context flag
     * @param flag the context flag to set or clear
     * @param value true to set the flag, false to clear it
     */
    public void setContextFlag(final int flag, final boolean value) {
        setContextFlags(value ? getContextFlags() | flag : getContextFlags() & (0xffffffff ^ flag));
    }

    /**

  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  public void testPutAllRejectsNullValue() {
    Multimap<K, V> source = getSubjectGenerator().create(mapEntry(k0(), null));
    assertThrows(NullPointerException.class, () -> multimap().putAll(source));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_KEYS)

  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  public void testPutAllRejectsNullValue() {
    Multimap<K, V> source = getSubjectGenerator().create(mapEntry(k0(), null));
    assertThrows(NullPointerException.class, () -> multimap().putAll(source));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_KEYS)