Fix Jackson2AutoConfiguration import for @AutoConfigureJson

Closes gh-47811

module/spring-boot-jackson2/src/main/resources/META-INF/spring/org.springframework.boot.test.autoconfigure.json.AutoConfigureJson.imports

@@ -1 +1 @@
-org.springframework.boot.jackson.autoconfigure.Jackson2AutoConfiguration
+org.springframework.boot.jackson2.autoconfigure.Jackson2AutoConfiguration

module/spring-boot-jackson2/src/test/java/org/springframework/boot/jackson2/AutoConfigureJsonTests.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012-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.boot.jackson2;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.json.AutoConfigureJson;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link AutoConfigureJson} with Jackson 2.
+ *
+ * @author Moritz Halbritter
+ * @deprecated since 4.0.0 for removal in 4.2.0 in favor of Jackson 3
+ */
+@AutoConfigureJson
+@ExtendWith(SpringExtension.class)
+@Deprecated(since = "4.0.0", forRemoval = true)
+class AutoConfigureJsonTests {
+
+	@Autowired
+	private ObjectProvider<ObjectMapper> objectMapper;
+
+	@Test
+	void shouldAutowireObjectMapper() {
+		assertThat(this.objectMapper.getIfAvailable()).isNotNull();
+	}
+
+}