import jakarta.validation.ConstraintViolation;
import jakarta.validation.Validation;
import jakarta.validation.Validator;
import jakarta.validation.ValidatorFactory;
import jakarta.validation.groups.Default;

public class CronExpressionTest extends UnitFessTestCase {

    private Validator validator;

    @Override
    public void setUp() throws Exception {
        super.setUp();

public class CustomSizeValidatorTest extends UnitFessTestCase {

    private CustomSizeValidator validator;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        validator = new CustomSizeValidator();
    }

    public void test_constructor() {
        assertNotNull(validator);
    }

    public void test_isValid_nullValue() {

        validator.addToBlacklist("\\share\\blocked");
        validator.clearBlacklist();

        // Should allow previously blacklisted path
        String allowed = validator.validatePath("\\share\\blocked\\file.txt");
        assertEquals("\\share\\blocked\\file.txt", allowed);
    }

    @Test
    public void testClearWhitelist() throws Exception {
        validator.addToWhitelist("\\share\\allowed");

        assertTrue(validator.determineValid(null));
        assertTrue(validator.determineValid(""));
        assertTrue(validator.determineValid(" "));
        assertTrue(validator.determineValid("   "));
        assertTrue(validator.determineValid("\t"));
        assertTrue(validator.determineValid("\n"));
    }

    public void test_initialize() {
        final CronExpression cronExpression = null;
        validator.initialize(cronExpression);

      - name: GitHub CODEOWNERS Validator
        uses: mszostok/codeowners-validator@v0.7.4
        with:
          checks: "files,duppatterns,syntax"
          experimental_checks: "notowned,avoid-shadowing"

      # downgrading to 0.7.2 for owners check to avoid issues with token permissions check,
      # see https://github.com/mszostok/codeowners-validator/issues/224
      - name: GitHub CODEOWNERS Validator

        assertEquals(Integer.MAX_VALUE, validator.safeAdd(Integer.MAX_VALUE, 0));
        assertEquals(Integer.MIN_VALUE, validator.safeAdd(Integer.MIN_VALUE, 0));
        assertEquals(0, validator.safeMultiply(0, Integer.MAX_VALUE));
        assertEquals(1, validator.safeMultiply(1, 1));

        // Test exact buffer boundaries
        byte[] buffer = new byte[100];

        assertEquals("Validator class should be UriTypeValidator", UriTypeValidator.class, constraint.validatedBy()[0]);
        assertEquals("Should have exactly one validator", 1, constraint.validatedBy().length);
    }

    // Test default values
    public void test_defaultValues() throws Exception {
        assertEquals("Default message should match", "{org.lastaflute.validator.constraints.UriType.message}", getDefaultMessage());

In those cases, you can use a **custom validator function** that is applied after the normal validation (e.g. after validating that the value is a `str`).

You can achieve that using <a href="https://docs.pydantic.dev/latest/concepts/validators/#field-after-validator" class="external-link" target="_blank">Pydantic's `AfterValidator`</a> inside of `Annotated`.

/// tip

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.hibernate.validator.constraintvalidation.HibernateConstraintValidatorContext;

import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;

/**
 * Validator implementation for the CustomSize constraint.
 */

        @Override
        public String getConverterPackageName() {
            return "converter";
        }

        @Override
        public String getValidatorPackageName() {
            return "validator";
        }

        @Override
        public String getInterceptorPackageName() {
            return "interceptor";
        }

        @Override
        public String getHelperPackageName() {