Order modifiers to align with JLS

This commit also applies Checkstyle ModifierOrder to enforce it.

See gh-31368

spring-web/src/main/java/org/springframework/http/ContentDisposition.java

@@ -50,10 +50,10 @@ import static java.time.format.DateTimeFormatter.RFC_1123_DATE_TIME;
  */
 public final class ContentDisposition {
 
-	private final static Pattern BASE64_ENCODED_PATTERN =
+	private static final Pattern BASE64_ENCODED_PATTERN =
 			Pattern.compile("=\\?([0-9a-zA-Z-_]+)\\?B\\?([+/0-9a-zA-Z]+=*)\\?=");
 
-	private final static Pattern QUOTED_PRINTABLE_ENCODED_PATTERN =
+	private static final Pattern QUOTED_PRINTABLE_ENCODED_PATTERN =
 			Pattern.compile("=\\?([0-9a-zA-Z-_]+)\\?Q\\?([!->@-~]+)\\?="); // Printable ASCII other than "?" or SPACE
 
 	private static final String INVALID_HEADER_FIELD_PARAMETER_FORMAT =

spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpConnector.java

@@ -51,7 +51,7 @@ public class ReactorClientHttpConnector implements ClientHttpConnector, SmartLif
 
 	private static final Log logger = LogFactory.getLog(ReactorClientHttpConnector.class);
 
-	private final static Function<HttpClient, HttpClient> defaultInitializer = client -> client.compress(true);
+	private static final Function<HttpClient, HttpClient> defaultInitializer = client -> client.compress(true);
 
 
 	private HttpClient httpClient;

spring-web/src/main/java/org/springframework/http/client/reactive/ReactorNetty2ClientHttpConnector.java

@@ -41,7 +41,7 @@ import org.springframework.util.Assert;
  */
 public class ReactorNetty2ClientHttpConnector implements ClientHttpConnector {
 
-	private final static Function<HttpClient, HttpClient> defaultInitializer = client -> client.compress(true);
+	private static final Function<HttpClient, HttpClient> defaultInitializer = client -> client.compress(true);
 
 
 	private final HttpClient httpClient;

spring-web/src/main/java/org/springframework/http/codec/multipart/DefaultPartEvents.java

@@ -74,7 +74,7 @@ abstract class DefaultPartEvents {
 
 
 
-	private static abstract class AbstractPartEvent implements PartEvent {
+	private abstract static class AbstractPartEvent implements PartEvent {
 
 		private final HttpHeaders headers;
 

spring-web/src/main/java/org/springframework/http/codec/multipart/DefaultParts.java

@@ -102,7 +102,7 @@ abstract class DefaultParts {
 	/**
 	 * Abstract base class for {@link Part} implementations.
 	 */
-	private static abstract class AbstractPart implements Part {
+	private abstract static class AbstractPart implements Part {
 
 		private final HttpHeaders headers;
 

spring-web/src/main/java/org/springframework/http/codec/multipart/MultipartParser.java

@@ -212,7 +212,7 @@ final class MultipartParser extends BaseSubscriber<DataBuffer> {
 	/**
 	 * Represents a token that contains {@link HttpHeaders}.
 	 */
-	public final static class HeadersToken extends Token {
+	public static final class HeadersToken extends Token {
 
 		private final HttpHeaders headers;
 
@@ -240,7 +240,7 @@ final class MultipartParser extends BaseSubscriber<DataBuffer> {
 	/**
 	 * Represents a token that contains {@link DataBuffer}.
 	 */
-	public final static class BodyToken extends Token {
+	public static final class BodyToken extends Token {
 
 		private final DataBuffer buffer;
 

spring-web/src/main/java/org/springframework/http/server/PathContainer.java

@@ -140,7 +140,7 @@ public interface PathContainer {
 		 * Options for HTTP URL paths.
 		 * <p>Separator '/' with URL decoding and parsing of path parameters.
 		 */
-		public final static Options HTTP_PATH = Options.create('/', true);
+		public static final Options HTTP_PATH = Options.create('/', true);
 
 		/**
 		 * Options for a message route.
@@ -148,7 +148,7 @@ public interface PathContainer {
 		 * Escape sequences for the separator character in segment values are still
 		 * decoded.
 		 */
-		public final static Options MESSAGE_ROUTE = Options.create('.', false);
+		public static final Options MESSAGE_ROUTE = Options.create('.', false);
 
 		private final char separator;
 

spring-web/src/main/java/org/springframework/http/server/reactive/AbstractListenerReadPublisher.java

@@ -58,7 +58,7 @@ public abstract class AbstractListenerReadPublisher<T> implements Publisher<T> {
 	 */
 	protected static Log rsReadLogger = LogDelegateFactory.getHiddenLog(AbstractListenerReadPublisher.class);
 
-	final static DataBuffer EMPTY_BUFFER = DefaultDataBufferFactory.sharedInstance.allocateBuffer(0);
+	static final DataBuffer EMPTY_BUFFER = DefaultDataBufferFactory.sharedInstance.allocateBuffer(0);
 
 
 	private final AtomicReference<State> state = new AtomicReference<>(State.UNSUBSCRIBED);

spring-web/src/main/java/org/springframework/web/client/UnknownContentTypeException.java

@@ -37,7 +37,7 @@ public class UnknownContentTypeException extends RestClientException {
 	private static final long serialVersionUID = 2759516676367274084L;
 
 
-	private transient final Type targetType;
+	private final transient Type targetType;
 
 	private final MediaType contentType;
 

spring-web/src/main/java/org/springframework/web/service/invoker/ReactiveHttpRequestValues.java

@@ -109,7 +109,7 @@ public final class ReactiveHttpRequestValues extends HttpRequestValues {
 	/**
 	 * Builder for {@link ReactiveHttpRequestValues}.
 	 */
-	public final static class Builder extends HttpRequestValues.Builder {
+	public static final class Builder extends HttpRequestValues.Builder {
 
 		@Nullable
 		private MultipartBodyBuilder multipartBuilder;

spring-web/src/main/java/org/springframework/web/util/BindErrorUtils.java

@@ -37,7 +37,7 @@ import org.springframework.validation.FieldError;
  */
 public abstract class BindErrorUtils {
 
-	private final static MessageSource defaultMessageSource = new MethodArgumentErrorMessageSource();
+	private static final MessageSource defaultMessageSource = new MethodArgumentErrorMessageSource();
 
 
 	/**

spring-web/src/main/java/org/springframework/web/util/pattern/PathPatternParser.java

@@ -139,7 +139,7 @@ public class PathPatternParser {
 	 * <li>{@code pathOptions = PathContainer.Options.HTTP_PATH}
 	 * </ul>
 	 */
-	public final static PathPatternParser defaultInstance = new PathPatternParser() {
+	public static final PathPatternParser defaultInstance = new PathPatternParser() {
 
 		@SuppressWarnings("deprecation")
 		@Override