- [Scala Applications](https://docs.gradle.org/current/samples/sample_building_scala_applications.html)
  - [Spring Boot Web Apps](https://docs.gradle.org/current/samples/sample_building_spring_boot_web_applications.html)
  - [C++ Libraries](https://docs.gradle.org/current/samples/sample_building_cpp_libraries.html)
  - [Swift Apps](https://docs.gradle.org/current/samples/sample_building_swift_applications.html)

    }

    @Override
    public SampleElements<Entry<V, K>> samples() {
      SampleElements<Entry<K, V>> samples = generator.samples();
      return new SampleElements<>(
          reverse(samples.e0()),
          reverse(samples.e1()),
          reverse(samples.e2()),
          reverse(samples.e3()),
          reverse(samples.e4()));
    }

    private Entry<V, K> reverse(Entry<K, V> entry) {

    return generator.create(elements.toArray());
  }

  @Override
  public Collection<E> getSampleElements(int howMany) {
    SampleElements<E> samples = samples();
    List<E> allSampleElements =
        asList(samples.e0(), samples.e1(), samples.e2(), samples.e3(), samples.e4());
    return new ArrayList<>(allSampleElements.subList(0, howMany));
  }

  @Override
  public CollectionSize getCollectionSize() {

    public SampleElements<Multiset.Entry<E>> samples() {
      SampleElements<E> samples = gen.samples();
      return new SampleElements<>(
          Multisets.immutableEntry(samples.e0(), 3),
          Multisets.immutableEntry(samples.e1(), 4),
          Multisets.immutableEntry(samples.e2(), 1),
          Multisets.immutableEntry(samples.e3(), 5),
          Multisets.immutableEntry(samples.e4(), 2));
    }

    @Override

  @CollectionSize.Require(absent = ZERO)
  public void testRemoveIf_sometimesTrue() {
    assertTrue(
        "removeIf(isEqual(present)) should return true",
        collection.removeIf(Predicate.isEqual(samples.e0())));
    expectMissing(samples.e0());
  }

  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveIf_allPresent() {

```
./bin/spark-submit --class org.apache.spark.examples.SparkPi \
    --master yarn-client \
    --num-executors 1 \
    --driver-memory 512m \
    --executor-memory 512m \
    --executor-cores 1 \
    examples/jars/spark-examples*.jar 10
```

The job should produce an output as shown below. Note the value of pi in the output.

```

  @ListFeature.Require(SUPPORTS_SET)
  public void testReplaceAll() {
    getList().replaceAll(e -> samples.e3());
    expectContents(Collections.nCopies(getNumElements(), samples.e3()));
  }

  @ListFeature.Require(SUPPORTS_SET)
  public void testReplaceAll_changesSome() {
    getList().replaceAll(e -> e.equals(samples.e0()) ? samples.e3() : e);
    E[] expected = createSamplesArray();
    for (int i = 0; i < expected.length; i++) {

   */
  private @Nullable Object generate(TypeToken<?> type) {
    Class<?> rawType = type.getRawType();
    List<Object> samples = sampleInstances.get(rawType);
    Object sample = pickInstance(samples, null);
    if (sample != null) {
      return sample;
    }
    if (rawType.isEnum()) {
      return pickInstance(rawType.getEnumConstants(), null);
    }
    if (type.isArray()) {

            .create().generate()
        projectLayoutSetupRegistry.templateOperationFactory.newTemplateOperation()
            .withTemplate(templateFolder.template("build.sample.conf"))
            .withTarget(settings.target.file("../tests/build.sample.conf").asFile)
            .create().generate()
    }

    private
    fun tasksExecuted(descriptor: CompositeProjectInitDescriptor): Int {

            attributes.put("snippetsPath", "snippets");
            // Make sure the 'raw' location of the samples is available in all AsciidoctorTasks to access files with expected outputs in the 'tests' folder for inclusion in READMEs
            attributes.put("samplesPath", extension.getUserManual().getStagingRoot().dir("raw/samples").get().getAsFile());
            task.attributes(attributes);
        });