bug: props with optional getters should be validated

validation/src/test/groovy/io/micronaut/validation/validator/ValidatorSpec.groovy

@@ -6,6 +6,7 @@ import io.micronaut.context.annotation.Prototype
 import io.micronaut.context.annotation.Value
 import io.micronaut.context.exceptions.BeanInstantiationException
 import io.micronaut.core.annotation.Introspected
+import io.micronaut.core.annotation.Nullable
 import io.micronaut.core.reflect.ClassUtils
 import io.micronaut.validation.Validated
 import io.micronaut.validation.validator.resolver.CompositeTraversableResolver
@@ -17,9 +18,12 @@ import jakarta.validation.constraints.Max
 import jakarta.validation.constraints.Min
 import jakarta.validation.constraints.NotBlank
 import jakarta.validation.constraints.NotNull
+import jakarta.validation.constraints.Pattern
 import jakarta.validation.constraints.Size
 import jakarta.validation.metadata.BeanDescriptor
 import spock.lang.AutoCleanup
+import spock.lang.Issue
+import spock.lang.PendingFeature
 import spock.lang.Shared
 import spock.lang.Specification
 
@@ -153,6 +157,21 @@ class ValidatorSpec extends Specification {
 
     }
 
+    @PendingFeature
+    @Issue("https://github.com/micronaut-projects/micronaut-validation/pull/165")
+    void "test validate bean property with Optional getter"() {
+        given:
+        OptionalGetters g = new OptionalGetters(alpha: "non alpha with space");
+        def violations = validator.validateProperty(g, "alpha")
+
+        expect:
+        violations.size() == 1
+        violations[0].invalidValue == 'non alpha with space'
+        violations[0].propertyPath.iterator().next().name == 'alpha'
+        violations[0].constraintDescriptor.annotation instanceof Pattern
+        violations[0].message == 'must match "[a-z]+"'
+    }
+
     void "test validate value"() {
         given:
         def violations = validator.validateValue(Book, "title", "").sort { it.propertyPath.iterator().next().name }
@@ -1047,6 +1066,22 @@ class Author {
     Book favouriteBook
 }
 
+@Introspected
+class OptionalGetters {
+
+    @Nullable
+    @Pattern(regexp = "[a-z]+")
+    String alpha
+
+    Optional<String> getAlpha() {
+        Optional.ofNullable(alpha)
+    }
+
+    void setAlpha(String alpha) {
+        this.alpha = alpha
+    }
+}
+
 @Introspected
 @Prototype
 class ArrayTest {