Prerequisites prerequisites =
                        mavenProject.getModel().getDelegate().getPrerequisites();
                if (prerequisites != null && prerequisites.getMaven() != null) {
                    logger.warn(
                            "The project {} uses prerequisites"
                                    + " which is only intended for maven-plugin projects "

    }

    @Test
    @DisplayName("DOS_ERROR_CODES is non‑null and non‑empty")
    void testCodesArrayExistence() {
        assertNotNull(DosError.DOS_ERROR_CODES, "DOS_ERROR_CODES should be non‑null");
        assertTrue(DosError.DOS_ERROR_CODES.length > 0, "DOS_ERROR_CODES should contain at least one mapping");
    }

    @Test

  body: ByteString?,
  connectionIndex: Int,
  exchangeIndex: Int,
  socket: MockWebServerSocket,
  failure: IOException? = null,
): RecordedRequest {
  val requestUrl =
    when (requestLine.method) {
      "CONNECT" -> "${socket.scheme}://${requestLine.target}/".toHttpUrlOrNull()
      else -> null
    }
      ?: requestLine.target.toHttpUrlOrNull()
      ?: requestUrl(socket, requestLine, headers)

  return RecordedRequest(

    /**
     * Gets the policy that applies to this metadata regarding the specified repository.
     *
     * @param repository The repository for which to determine the policy, must not be {@code null}.
     * @return The policy, never {@code null}.
     */
    ArtifactRepositoryPolicy getPolicy(ArtifactRepository repository);

    private Language language;

    private String moduleName;

    @Override
    public ProjectScope scope() {
        return (scope != null) ? scope : SourceRoot.super.scope();
    }

    @Override
    public Language language() {
        return (language != null) ? language : SourceRoot.super.language();
    }

    @Override
    public Optional<String> module() {
        return Optional.ofNullable(moduleName);

    for (entry in list) {
      var failure: Throwable? = null
      try {
        testToAscii(entry.input!!, entry.output, entry.comment)
      } catch (e: Throwable) {
        failure = e
      }

      if (entry.input in knownFailures) {
        if (failure == null) failures += AssertionError("known failure didn't fail: $entry")
      } else {
        if (failure != null) failures += failure
      }
    }

    val mainMethod =
      Class
        .forName(className)
        .methods
        .find { it.name == "main" }
    try {
      if (mainMethod != null) {
        if (mainMethod.parameters.isEmpty()) {
          mainMethod.invoke(null)
        } else {
          mainMethod.invoke(null, arrayOf<String>())
        }
      } else {
        System.err.println("No main for $className")
      }

  }

  public void testToOptionalSingleton() {
    assertThat(Stream.of(1).collect(toOptional())).hasValue(1);
  }

  public void testToOptionalNull() {
    Stream<@Nullable Object> stream = Stream.of((Object) null);
    assertThrows(NullPointerException.class, () -> stream.collect(toOptional()));
  }

  public void testToOptionalMultiple() {
    IllegalArgumentException expected =

        if (event.getMetadata().getFile() != null) {
            metadata = event.getMetadata().getFile();
        } else {
            metadata = event.getMetadata();
        }

        String errorType = " is invalid";
        if (exception instanceof FileNotFoundException) {
            errorType = " is inaccessible";
        }

        String msg = "";
        if (exception != null) {

    }

    @Test
    void testOneProblem() {
        ProblemCollector problemCollector = ProblemCollectorFactory.newInstance(null);
        problemCollector.add(Problem.Severity.ERROR, "MESSAGE", 3, 5, new Exception());
        ToolchainsBuildingException e = new ToolchainsBuildingException(problemCollector.getProblems());
        assertEquals(