Add a test for a bean where constraints are defined only in an XML

integration-tests/hibernate-validator/src/main/java/io/quarkus/it/hibernate/validator/HibernateValidatorTestResource.java

@@ -47,6 +47,7 @@
 import io.quarkus.it.hibernate.validator.injection.InjectedConstraintValidatorConstraint;
 import io.quarkus.it.hibernate.validator.injection.MyService;
 import io.quarkus.it.hibernate.validator.orm.TestEntity;
+import io.quarkus.it.hibernate.validator.xml.ValidationServiceBasedOnXmlConstraints;
 import io.quarkus.runtime.StartupEvent;
 
 @Path("/hibernate-validator/test")
@@ -63,6 +64,9 @@ public class HibernateValidatorTestResource
     @Inject
     EnhancedGreetingService enhancedGreetingService;
 
+    @Inject
+    ValidationServiceBasedOnXmlConstraints validationServiceBasedOnXmlConstraints;
+
     @Inject
     ZipCodeService zipCodeResource;
 
@@ -334,6 +338,17 @@ public String testClockBasedConstraints() {
         return result.build();
     }
 
+    @GET
+    @Path("/constraints-defined-in-xml")
+    @Produces(MediaType.TEXT_PLAIN)
+    public String testConstraintsDefinedInXml() {
+        ResultBuilder result = new ResultBuilder();
+
+        result.append(formatViolations(validationServiceBasedOnXmlConstraints.validateSomeMyXmlBean()));
+
+        return result.build();
+    }
+
     private String formatViolations(Set<? extends ConstraintViolation<?>> violations) {
         if (violations.isEmpty()) {
             return "passed";

integration-tests/hibernate-validator/src/main/java/io/quarkus/it/hibernate/validator/xml/MyXmlBean.java

@@ -0,0 +1,6 @@
+package io.quarkus.it.hibernate.validator.xml;
+
+public class MyXmlBean {
+    int id = 0;
+    String name;
+}

integration-tests/hibernate-validator/src/main/java/io/quarkus/it/hibernate/validator/xml/ValidationServiceBasedOnXmlConstraints.java

@@ -0,0 +1,19 @@
+package io.quarkus.it.hibernate.validator.xml;
+
+import java.util.Set;
+
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import jakarta.validation.ConstraintViolation;
+import jakarta.validation.Validator;
+
+@ApplicationScoped
+public class ValidationServiceBasedOnXmlConstraints {
+
+    @Inject
+    Validator validator;
+
+    public Set<ConstraintViolation<MyXmlBean>> validateSomeMyXmlBean() {
+        return validator.validate(new MyXmlBean());
+    }
+}

integration-tests/hibernate-validator/src/main/resources/META-INF/validation.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<validation-config
+        xmlns="https://jakarta.ee/xml/ns/validation/configuration"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="https://jakarta.ee/xml/ns/validation/configuration https://jakarta.ee/xml/ns/validation/validation-configuration-3.0.xsd"
+        version="3.0">
+    <constraint-mapping>META-INF/validation/constraints-my-xml-bean.xml</constraint-mapping>
+</validation-config>

integration-tests/hibernate-validator/src/main/resources/META-INF/validation/constraints-my-xml-bean.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<constraint-mappings
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="https://jakarta.ee/xml/ns/validation/mapping https://jakarta.ee/xml/ns/validation/validation-mapping-3.0.xsd"
+        xmlns="https://jakarta.ee/xml/ns/validation/mapping" version="3.0">
+
+    <bean class="io.quarkus.it.hibernate.validator.xml.MyXmlBean">
+        <field name="id">
+            <constraint annotation="jakarta.validation.constraints.Positive"/>
+        </field>
+        <field name="name">
+            <constraint annotation="jakarta.validation.constraints.NotNull"/>
+        </field>
+    </bean>
+</constraint-mappings>

integration-tests/hibernate-validator/src/test/java/io/quarkus/it/hibernate/validator/HibernateValidatorFunctionalityTest.java

@@ -540,4 +540,16 @@ void testClockBasedConstraints() {
                 .then()
                 .body(is("passed"));
     }
+
+    @Test
+    void testConstraintsDefinedInXml() {
+        RestAssured.given()
+                .when()
+                .get("/hibernate-validator/test/constraints-defined-in-xml")
+                .then()
+                .statusCode(200)
+                .body(containsString("failed"),
+                        containsString("id (must be greater than 0)"),
+                        containsString("name (must not be null)"));
+    }
 }