Add missing reflection hints for JdbcUtils

This commit adds the missing reflection hints for `JdbcUtils`, as this
class reflects on `java.sql.Types` public fields.

Fixes gh-35674

Author: bclozel

spring-jdbc/src/main/java/org/springframework/jdbc/support/JdbcUtilsRuntimeHints.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2025-present 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.jdbc.support;
+
+import java.sql.Types;
+
+import org.jspecify.annotations.Nullable;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+
+/**
+ * {@link RuntimeHintsRegistrar} implementation that registers runtime hints for
+ * {@link JdbcUtils}.
+ * @author Brian Clozel
+ * @since 6.2.13
+ */
+class JdbcUtilsRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
+		hints.reflection().registerType(Types.class, MemberCategory.ACCESS_PUBLIC_FIELDS);
+	}
+
+}

spring-jdbc/src/main/resources/META-INF/spring/aot.factories

@@ -1,2 +1,3 @@
 org.springframework.aot.hint.RuntimeHintsRegistrar=\
-org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactoryRuntimeHints
+org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactoryRuntimeHints,\
+org.springframework.jdbc.support.JdbcUtilsRuntimeHints

spring-jdbc/src/test/java/org/springframework/jdbc/support/JdbcUtilsRuntimeHintsTests.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2025-present 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.jdbc.support;
+
+import java.lang.reflect.Field;
+import java.sql.Types;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
+import org.springframework.beans.factory.aot.AotServices;
+import org.springframework.util.ClassUtils;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link JdbcUtilsRuntimeHints}.
+ */
+class JdbcUtilsRuntimeHintsTests {
+
+	private final RuntimeHints hints = new RuntimeHints();
+
+	@BeforeEach
+	void setup() {
+		AotServices.factories().load(RuntimeHintsRegistrar.class)
+				.forEach(registrar -> registrar.registerHints(this.hints,
+						ClassUtils.getDefaultClassLoader()));
+	}
+
+	@Test
+	void sqlTypesShouldHaveFieldAccess() {
+		for (Field field : Types.class.getFields()) {
+			assertThat(RuntimeHintsPredicates.reflection()
+					.onFieldAccess(field)).accepts(this.hints);
+		}
+	}
+
+}