Element cleanPlugin = plugins.children("plugin")
                    .filter(p -> "maven-clean-plugin"
                            .equals(p.child("artifactId").orElse(null).textContent()))
                    .findFirst()
                    .orElse(null);
            assertNotNull(cleanPlugin);

            Element cleanExecutions = cleanPlugin.child("executions").orElse(null);
            Element preCleanExecution = cleanExecutions

   * will match, use {@link #tryFind} or {@link #find(Iterable, Predicate, Object)} instead.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.filter(predicate).findFirst().get()}
   *
   * @throws NoSuchElementException if no element in {@code iterable} matches the given predicate
   */
  @ParametricNullness
  public static <T extends @Nullable Object> T find(

        return getProjectArtifacts(project)
                .filter(artifact ->
                        Objects.equals(requestedRepositoryConflictId, ArtifactIdUtils.toVersionlessId(artifact)))
                .findFirst()
                .orElse(null);
    }

    /**
     * Determines whether the specified artifact refers to test classes.
     *
     * @param artifact The artifact to check, must not be {@code null}.

    }

    private InstallationLocation getJavaInstallation(File javaHome) {
        return getAvailableJavaInstallationLocationSteam().filter(installationLocation -> isSameFile(javaHome, installationLocation))
            .findFirst()
            .orElseThrow(() -> new GradleException("Could not locate available Java installation in Gradle registry at: " + javaHome));
    }

                        .getSrcDirs()
                        .stream()
                        .filter(f -> f.isDirectory() && f.getName().equals("resources"))
                        .findFirst()
                        .orElse(null)
                );
                task.setSkipHasRestTestCheck(true);
                task.setConfigToFileTree(
                    config -> project.fileTree(

   * streams.
   *
   * <p>If the stream has nondeterministic order, this has equivalent semantics to {@link
   * Stream#findAny} (which you might as well use).
   *
   * @see Stream#findFirst()
   * @throws NullPointerException if the last element of the stream is null
   */
  /*
   * By declaring <T> instead of <T extends @Nullable Object>, we declare this method as requiring a

            DispatcherMeta meta = secDispatcher.availableDispatchers().stream()
                    .filter(d -> Objects.equals(config.getDefaultDispatcher(), d.name()))
                    .findFirst()
                    .orElseThrow();
            if (!meta.fields().isEmpty()) {
                dispatcherConfigResult = prompt.prompt(
                        context.header,

        final int maxQueryLength = fessConfig.getQueryMaxLengthAsInteger();

        stream(conditions.get(SearchRequestParams.AS_OCCURRENCE))
                .of(stream -> stream.filter(this::isOccurrence).findFirst().ifPresent(q -> queryBuf.insert(0, q + ":")));

        stream(conditions.get(SearchRequestParams.AS_Q))
                .of(stream -> stream.filter(q -> StringUtil.isNotBlank(q) && q.length() <= maxQueryLength)

                return result;
            } else {
                session.getAllProjects().stream()
                        .filter(MavenProject::isExecutionRoot)
                        .findFirst()
                        .ifPresent(buildResumptionDataRepository::removeResumptionData);
            }
        } finally {
            try {
                afterSessionEnd(session);

            try (Stream<String> lines = Files.lines(file.toPath())) {
                String packageLine = lines.filter(line -> line.startsWith("package"))
                    .findFirst()
                    .orElseThrow(() -> new IOException("Can't find package definition in file " + file));
                Matcher matcher = pattern.matcher(packageLine);
                if (matcher.find()) {