Add runtime hints for GroovyTemplateAvailabilityProperties

Closes gh-33847

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/groovy/template/GroovyTemplateAutoConfiguration.java

@@ -38,6 +38,7 @@ import org.springframework.boot.context.properties.EnableConfigurationProperties
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.ImportRuntimeHints;
 import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.core.log.LogMessage;
 import org.springframework.web.servlet.view.UrlBasedViewResolver;
@@ -59,6 +60,7 @@ import org.springframework.web.servlet.view.groovy.GroovyMarkupViewResolver;
 @AutoConfiguration(after = WebMvcAutoConfiguration.class)
 @ConditionalOnClass(MarkupTemplateEngine.class)
 @EnableConfigurationProperties(GroovyTemplateProperties.class)
+@ImportRuntimeHints(GroovyTemplateRuntimeHints.class)
 public class GroovyTemplateAutoConfiguration {
 
 	private static final Log logger = LogFactory.getLog(GroovyTemplateAutoConfiguration.class);

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/groovy/template/GroovyTemplateRuntimeHints.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.autoconfigure.groovy.template;
+
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAvailabilityProvider.GroovyTemplateAvailabilityProperties;
+import org.springframework.boot.context.properties.bind.BindableRuntimeHintsRegistrar;
+
+/**
+ * {@link RuntimeHintsRegistrar} for Groovy Template support.
+ *
+ * @author Moritz Halbritter
+ */
+class GroovyTemplateRuntimeHints extends BindableRuntimeHintsRegistrar {
+
+	GroovyTemplateRuntimeHints() {
+		super(GroovyTemplateAvailabilityProperties.class);
+	}
+
+}