Updates to use new JsonMapper constructors in Spring Framework 7.0 M9.

Closes gh-934

Author: spencergibb

pom.xml

@@ -47,7 +47,7 @@
 		<netty.version>4.2.3.Final</netty.version>
 		<nullaway.version>0.12.3</nullaway.version>
 		<okhttp3.version>3.14.9</okhttp3.version>
-		<spring.version>7.0.0-M7</spring.version>
+		<spring.version>7.0.0-SNAPSHOT</spring.version>
 		<spring-data-bom.version>2025.1.0-M4</spring-data-bom.version>
 		<spring-security-bom.version>6.5.0</spring-security-bom.version>
 		<reactor.version>2025.0.0-M5</reactor.version>

spring-vault-core/src/main/java/org/springframework/vault/support/JacksonCompat.java

@@ -271,6 +271,7 @@ static class Jackson3 extends JacksonCompat {
 
 		static final Jackson3 INSTANCE = new Jackson3();
 
+		static final tools.jackson.databind.json.JsonMapper JSON_MAPPER = JsonMapper.builder().build();
 		static final tools.jackson.databind.ObjectMapper OBJECT_MAPPER = new tools.jackson.databind.ObjectMapper();
 		static final tools.jackson.databind.ObjectMapper PRETTY_PRINT_OBJECT_MAPPER = JsonMapper.builder()
 			.enable(tools.jackson.databind.SerializationFeature.INDENT_OUTPUT)
@@ -279,7 +280,7 @@ static class Jackson3 extends JacksonCompat {
 		static final Jackson3ObjectMapperAccessor MAPPER_ACCESSOR = new Jackson3ObjectMapperAccessor(
 				PRETTY_PRINT_OBJECT_MAPPER);
 
-		static final JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter(OBJECT_MAPPER);
+		static final JacksonJsonHttpMessageConverter converter = new JacksonJsonHttpMessageConverter(JSON_MAPPER);
 
 		public static boolean isAvailable() {
 			return JACKSON_3_JSON_NODE != null;
@@ -293,8 +294,8 @@ public AbstractHttpMessageConverter<Object> createHttpMessageConverter() {
 		@Override
 		public void registerCodecs(Consumer<Object> messageConverters) {
 
-			messageConverters.accept(new JacksonJsonDecoder(OBJECT_MAPPER));
-			messageConverters.accept(new JacksonJsonEncoder(OBJECT_MAPPER));
+			messageConverters.accept(new JacksonJsonDecoder(JSON_MAPPER));
+			messageConverters.accept(new JacksonJsonEncoder(JSON_MAPPER));
 		}
 
 		@Override
@@ -324,7 +325,7 @@ public ObjectMapperAccessor getPrettyPrintObjectMapperAccessor() {
 				.map(AbstractJacksonHttpMessageConverter.class::cast) //
 				.findFirst();
 
-			return jackson3Converter.map(AbstractJacksonHttpMessageConverter::getObjectMapper)
+			return jackson3Converter.map(AbstractJacksonHttpMessageConverter::getMapper)
 				.map(Jackson3.Jackson3ObjectMapperAccessor::new)
 				.orElse(null);
 		}