.getAllprojects()
            .stream()
            .filter(p -> p.equals(this.project) == false)
            .filter(p -> p.getExtensions().findByType(TestFixtureExtension.class) != null)
            .map(project -> project.getExtensions().getByType(TestFixtureExtension.class))
            .flatMap(ext -> ext.serviceToProjectUseMap.entrySet().stream())
            .filter(entry -> entry.getKey().equals(serviceName))

 *
 * @author koichik
 */
public class ClIllegalArgumentException extends IllegalArgumentException {

    private static final long serialVersionUID = -3701473506893554853L;

    /** Name of the argument that is {@code null} */
    protected final String argName;

    /** Message code */
    protected final String messageCode;

    /** Arguments for the message */
    protected final Object[] args;

    /**

        } else {
            this.addrEntry[this.addrIndex] = null;
        }

        return 6;
    }

    @Override
    public String toString() {
        return ("NameQueryResponse[" + super.toString() + ",addrEntry=" + (this.addrEntry != null ? Arrays.toString(this.addrEntry) : "")
                + "]");
    }

    }

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    /**
     * May return null if the input project is null or is not part of the reactor.
     */
    @Nullable
    Project getProject(org.apache.maven.project.MavenProject project);

     */
    protected boolean isSearchField(final String field) {
        final QueryFieldConfig config = getQueryFieldConfig();
        return config.searchFieldSet != null && config.searchFieldSet.contains(field);
    }

    /**
     * Gets the query languages from the current request.
     * @return An optional containing the query languages array, or empty if not available.
     */

    }

    // Test validation with valid cron expressions
    @Test
    public void test_validCronExpressions() {
        TestBean bean = new TestBean();

        // Test null value (should be valid)
        bean.setCronExpression(null);
        Set<ConstraintViolation<TestBean>> violations = validator.validate(bean);
        assertTrue(violations.isEmpty());

        // Test empty string (should be valid)

    fakePool = new FakeExecutor();
    e = new SequentialExecutor(fakePool);
  }

  public void testConstructingWithNullExecutor_fails() {
    assertThrows(NullPointerException.class, () -> new SequentialExecutor(null));
  }

  public void testBasics() {
    AtomicInteger totalCalls = new AtomicInteger();
    Runnable intCounter =
        () -> {
          totalCalls.incrementAndGet();

        default -> "0x" + Hexdump.toHexString(this.questionType, 4);
        };
        recordTypeString = switch (this.recordType) {
        case A -> "A";
        case NS -> "NS";
        case NULL -> "NULL";
        case NB -> "NB";
        case NBSTAT -> "NBSTAT";
        default -> "0x" + Hexdump.toHexString(this.recordType, 4);
        };

        default -> "0x" + Hexdump.toHexString(questionType, 4);
        };
        recordTypeString = switch (recordType) {
        case A -> "A";
        case NS -> "NS";
        case NULL -> "NULL";
        case NB -> "NB";
        case NBSTAT -> "NBSTAT";
        default -> "0x" + Hexdump.toHexString(recordType, 4);
        };

        assertEquals(0, response.getDataCount());
    }

    @Test
    @DisplayName("Test entry management")
    void testEntryManagement() {
        // Test with null entries
        response.setResults(null);
        assertNull(response.getResults());

        // Test with empty entries
        FileEntry[] emptyEntries = new FileEntry[0];
        response.setResults(emptyEntries);