7.0.x Fix for Fields Rendering of java.time.*

grails-databinding/src/main/groovy/org/grails/databinding/converters/DefaultConvertersConfiguration.java

@@ -177,6 +177,11 @@ ValueConverter instantValueConverter() {
         return jsr310ConvertersConfiguration.instantValueConverter();
     }
 
+    @Bean("instantStructuredBindingEditor")
+    TypedStructuredBindingEditor instantStructuredBindingEditor() {
+        return jsr310ConvertersConfiguration.instantStructuredBindingEditor();
+    }
+
     @Bean("defaultUUIDConverter")
     protected UUIDConverter defaultuuidConverter() {
         return new UUIDConverter();

grails-databinding/src/main/groovy/org/grails/databinding/converters/Jsr310ConvertersConfiguration.groovy

@@ -388,6 +388,21 @@ class Jsr310ConvertersConfiguration {
         }
     }
 
+    @Bean
+    TypedStructuredBindingEditor instantStructuredBindingEditor() {
+        new CustomDateBindingEditor<Instant>() {
+            @Override
+            Instant getDate(Calendar c) {
+                c.toInstant()
+            }
+
+            @Override
+            Class<?> getTargetType() {
+                Instant
+            }
+        }
+    }
+
     abstract class Jsr310DateValueConverter<T> implements ValueConverter {
 
         @Override

grails-fields/grails-app/taglib/grails/plugin/formfields/FormFieldsTagLib.groovy

@@ -20,8 +20,11 @@ package grails.plugin.formfields
 
 import java.sql.Blob
 import java.text.NumberFormat
+import java.time.Instant
 import java.time.LocalDate
 import java.time.LocalDateTime
+import java.time.OffsetDateTime
+import java.time.ZonedDateTime
 
 import groovy.transform.CompileStatic
 import groovy.util.logging.Slf4j
@@ -725,7 +728,7 @@ class FormFieldsTagLib {
         }
 
         // TODO: https://github.com/apache/grails-core/issues/14198
-        boolean datePicker = model.type in [Date, Calendar, java.sql.Date, java.sql.Time, LocalDate, LocalDateTime]
+        boolean datePicker = model.type in [Date, Calendar, java.sql.Date, java.sql.Time, LocalDate, LocalDateTime, Instant, ZonedDateTime, OffsetDateTime]
         if (!datePicker) {
             attrs.remove('selectDateClass')
         }
@@ -947,12 +950,17 @@ class FormFieldsTagLib {
             case Boolean:
                 g.formatBoolean(boolean: model.value)
                 break
+            case LocalDate:
+            case java.sql.Date:
+                g.formatDate(date: model.value, format: 'yyyy-MM-dd')
+                break
             case Calendar:
             case Date:
-            case java.sql.Date:
             case java.sql.Time:
-            case LocalDate:
             case LocalDateTime:
+            case Instant:
+            case ZonedDateTime:
+            case OffsetDateTime:
                 g.formatDate(date: model.value)
                 break
             default:

grails-fields/src/test/groovy/grails/plugin/formfields/DisplayWidgetSpec.groovy

@@ -18,6 +18,7 @@
  */
 package grails.plugin.formfields
 
+import grails.plugin.formfields.mock.Cyborg
 import grails.plugin.formfields.mock.Person
 import grails.plugin.formfields.taglib.AbstractFormFieldsTagLibSpec
 import grails.testing.web.taglib.TagLibUnitTest
@@ -27,7 +28,7 @@ class DisplayWidgetSpec extends AbstractFormFieldsTagLibSpec implements TagLibUn
 	def mockFormFieldsTemplateService = Mock(FormFieldsTemplateService)
 
 	def setupSpec() {
-		mockDomain(Person)
+		mockDomains(Person, Cyborg)
 	}
 
 	def setup() {
@@ -40,6 +41,16 @@ class DisplayWidgetSpec extends AbstractFormFieldsTagLibSpec implements TagLibUn
 		applyTemplate('<f:displayWidget bean="personInstance" property="dateOfBirth"/>', [personInstance: personInstance]) == applyTemplate('<g:formatDate date="${personInstance.dateOfBirth}"/>', [personInstance: personInstance])
 	}
 
+	void 'f:displayWidget without template and an instant value renders the formatted date'() {
+		expect:
+		applyTemplate('<f:displayWidget bean="cyborgInstance" property="timestamp"/>', [cyborgInstance: cyborgInstance]) == applyTemplate('<g:formatDate date="${cyborgInstance.timestamp}"/>', [cyborgInstance: cyborgInstance])
+	}
+
+	void 'f:displayWidget without template and a LocalDate value renders the formatted date'() {
+		expect:
+		applyTemplate('<f:displayWidget bean="cyborgInstance" property="birthDate"/>', [cyborgInstance: cyborgInstance]) == applyTemplate('<g:formatDate date="${cyborgInstance.birthDate}" format="yyyy-MM-dd"/>', [cyborgInstance: cyborgInstance])
+	}
+
 	void 'f:displayWidget without template and a boolean value renders the formatted boolean'() {
 		expect:
 		applyTemplate('<f:displayWidget bean="personInstance" property="minor"/>', [personInstance: personInstance]) == applyTemplate('<g:formatBoolean boolean="${personInstance.minor}"/>', [personInstance: personInstance])

grails-fields/src/test/groovy/grails/plugin/formfields/mock/Person.groovy

@@ -18,13 +18,18 @@
  */
 package grails.plugin.formfields.mock
 
+import java.time.Instant
+import java.time.LocalDate
+
 import grails.gorm.annotation.AutoTimestamp
 import grails.persistence.Entity
 
 @Entity
 class Cyborg extends Person {
 	@AutoTimestamp(AutoTimestamp.EventType.CREATED) Date created
 	@AutoTimestamp Date modified
+	Instant timestamp
+	LocalDate birthDate
 }
 
 @Entity

grails-fields/src/test/groovy/grails/plugin/formfields/taglib/AbstractFormFieldsTagLibSpec.groovy

@@ -19,6 +19,9 @@
 
 package grails.plugin.formfields.taglib
 
+import java.time.Instant
+import java.time.LocalDate
+
 import grails.core.support.proxy.DefaultProxyHandler
 import grails.plugin.formfields.BeanPropertyAccessorFactory
 import grails.plugin.formfields.FieldsGrailsPlugin
@@ -45,7 +48,7 @@ abstract class AbstractFormFieldsTagLibSpec extends Specification implements Gra
 		personInstance.address = new Address(street: "94 Evergreen Terrace", city: "Springfield", country: "USA")
 		personInstance.emails = [home: "[email protected]", school: "[email protected]"]
         productInstance = new Product(netPrice: 12.33, name: "<script>alert('XSS');</script>")
-		cyborgInstance = new Cyborg(name: "Hal", password: "monolith", gender: null)
+		cyborgInstance = new Cyborg(name: "Hal", password: "monolith", gender: null, timestamp: Instant.parse("2025-10-16T00:12:15.195Z"), birthDate: LocalDate.of(2025, 10, 15))
 	}
 
 	def cleanup() {

grails-gsp/plugin/src/main/groovy/org/grails/plugins/web/DefaultGrailsTagDateHelper.groovy

@@ -134,6 +134,8 @@ class DefaultGrailsTagDateHelper implements GrailsTagDateHelper {
                 zonedDateTime = ZonedDateTime.of(date, ZoneId.systemDefault())
             } else if (date instanceof LocalDate) {
                 zonedDateTime = ZonedDateTime.of(date, LocalTime.MIN, ZoneId.systemDefault())
+            } else if (date instanceof Instant) {
+                zonedDateTime = ZonedDateTime.ofInstant(date, ZoneId.systemDefault())
             } else if (date instanceof OffsetDateTime) {
                 zonedDateTime = ((OffsetDateTime) date).toZonedDateTime()