execJob.testAppendJarFile(":", buf, libDir, "/base/path/");

        String result = buf.toString();
        assertTrue(result.contains(":/base/path/test1.jar"));
        assertTrue(result.contains(":/base/path/test2.JAR"));
        assertFalse(result.contains("test.txt"));

        // Test with non-existent directory
        buf = new StringBuilder();

  }

  @GwtIncompatible // ImmutableSortedSet.indexOf
  @Override
  public int lastIndexOf(@Nullable Object target) {
    return indexOf(target);
  }

  @Override
  public boolean contains(@Nullable Object target) {
    // Necessary for ISS's with comparators inconsistent with equals.
    return indexOf(target) >= 0;
  }

Language code: uk.

### Grammar and tone

- Use polite/formal address consistent with existing Ukrainian docs (use “ви/ваш”).
- Keep the tone concise and technical.
- Use one style of dashes. For example, if text contains "-" then use only this symbol to represent a dash.

### Headings

- Follow existing Ukrainian heading style; keep headings short and instructional.
- Do not add trailing punctuation to headings.

### Quotes

and furthermore provides reuse of the structs used for the request and response.

Note that Responses sent for serialization are automatically reused for similar requests.
If the response contains shared data it will cause issues, since each unique response is reused.
To disable this behavior, use `(SingleHandler).WithSharedResponse()` to disable it.

## Streaming Requests

        String toStringResult = exception.toString();
        assertNotNull(toStringResult);
        assertTrue(toStringResult.contains("DictionaryException"));
        assertTrue(toStringResult.contains(message));
    }

    this.multimap = checkNotNull(multimap);
  }

  @Override
  public Iterator<V> iterator() {
    return Maps.valueIterator(multimap.entries().iterator());
  }

  @Override
  public boolean contains(@Nullable Object o) {
    return multimap.containsValue(o);
  }

  @Override
  public int size() {
    return multimap.size();
  }

  @Override
  public boolean remove(@Nullable Object o) {

    } catch (AssertionError e) {
      assertWithMessage("Method did not throw null pointer OR element not in graph exception.")
          .that(e)
          .hasCauseThat()
          .hasMessageThat()
          .contains(ERROR_ELEMENT_NOT_IN_GRAPH);
    }
  }

**FastAPI** will use that *temporal* response to extract the headers (also cookies and status code), and will put them in the final response that contains the value you returned, filtered by any `response_model`.

You can also declare the `Response` parameter in dependencies, and set headers (and cookies) in them.

## Return a `Response` directly { #return-a-response-directly }

 *       This allows modern features like mixins to be preserved in the consumer POM.</li>
 * </ul>
 * <p>
 * <b>Mixin Handling</b>: Mixins are only supported in model version 4.2.0 or later. If a POM contains mixins:
 * <ul>
 *   <li>Setting {@code preserve.model.version=true} preserves them in the consumer POM with model version 4.2.0</li>
 *   <li>Setting {@code maven.consumer.pom.flatten=true} removes them during transformation</li>

    assertFalse(multimap().containsEntry(k3(), v3()));
  }

  public void testContainsEntryAgreesWithGet() {
    for (K k : sampleKeys()) {
      for (V v : sampleValues()) {
        assertEquals(multimap().get(k).contains(v), multimap().containsEntry(k, v));
      }
    }
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require({ALLOWS_NULL_KEYS, ALLOWS_NULL_VALUES})
  public void testContainsEntryNullYes() {