Add blank line between java and javax imports

See gh-23539

spring-web/src/main/java/org/springframework/http/client/Netty4ClientHttpRequestFactory.java

@@ -19,6 +19,7 @@ package org.springframework.http.client;
 import java.io.IOException;
 import java.net.URI;
 import java.util.concurrent.TimeUnit;
+
 import javax.net.ssl.SSLException;
 
 import io.netty.bootstrap.Bootstrap;

spring-web/src/main/java/org/springframework/http/codec/xml/Jaxb2XmlDecoder.java

@@ -22,6 +22,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.function.BiConsumer;
 import java.util.function.Function;
+
 import javax.xml.XMLConstants;
 import javax.xml.bind.JAXBElement;
 import javax.xml.bind.JAXBException;

spring-web/src/main/java/org/springframework/http/codec/xml/Jaxb2XmlEncoder.java

@@ -20,6 +20,7 @@ import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.function.Function;
+
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.MarshalException;
 import javax.xml.bind.Marshaller;

spring-web/src/main/java/org/springframework/http/codec/xml/JaxbContextContainer.java

@@ -18,6 +18,7 @@ package org.springframework.http.codec.xml;
 
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
+
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.Marshaller;

spring-web/src/main/java/org/springframework/http/codec/xml/XmlEventDecoder.java

@@ -22,6 +22,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Function;
+
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.events.XMLEvent;

spring-web/src/main/java/org/springframework/http/converter/BufferedImageHttpMessageConverter.java

@@ -25,6 +25,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
+
 import javax.imageio.IIOImage;
 import javax.imageio.ImageIO;
 import javax.imageio.ImageReadParam;

spring-web/src/main/java/org/springframework/http/converter/FormHttpMessageConverter.java

@@ -28,6 +28,7 @@ import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+
 import javax.mail.internet.MimeUtility;
 
 import org.springframework.core.io.Resource;

spring-web/src/main/java/org/springframework/http/converter/json/JsonbHttpMessageConverter.java

@@ -20,6 +20,7 @@ import java.io.Reader;
 import java.io.Writer;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
+
 import javax.json.bind.Jsonb;
 import javax.json.bind.JsonbBuilder;
 import javax.json.bind.JsonbConfig;

spring-web/src/main/java/org/springframework/http/converter/xml/AbstractJaxb2HttpMessageConverter.java

@@ -18,6 +18,7 @@ package org.springframework.http.converter.xml;
 
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
+
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.Marshaller;

spring-web/src/main/java/org/springframework/http/converter/xml/AbstractXmlHttpMessageConverter.java

@@ -17,6 +17,7 @@
 package org.springframework.http.converter.xml;
 
 import java.io.IOException;
+
 import javax.xml.transform.Result;
 import javax.xml.transform.Source;
 import javax.xml.transform.TransformerException;

spring-web/src/main/java/org/springframework/http/converter/xml/Jaxb2CollectionHttpMessageConverter.java

@@ -25,6 +25,7 @@ import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.SortedSet;
 import java.util.TreeSet;
+
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.UnmarshalException;
 import javax.xml.bind.Unmarshaller;

spring-web/src/main/java/org/springframework/http/converter/xml/Jaxb2RootElementHttpMessageConverter.java

@@ -17,6 +17,7 @@
 package org.springframework.http.converter.xml;
 
 import java.io.StringReader;
+
 import javax.xml.bind.JAXBElement;
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.MarshalException;

spring-web/src/main/java/org/springframework/http/converter/xml/SourceHttpMessageConverter.java

@@ -23,6 +23,7 @@ import java.io.OutputStream;
 import java.io.StringReader;
 import java.util.HashSet;
 import java.util.Set;
+
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;

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

@@ -18,6 +18,7 @@ package org.springframework.http.server;
 
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicBoolean;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.AsyncEvent;
 import javax.servlet.AsyncListener;

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

@@ -34,6 +34,7 @@ import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.http.HttpHeaders;

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

@@ -21,6 +21,7 @@ import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+
 import javax.servlet.http.HttpServletResponse;
 
 import org.springframework.http.HttpHeaders;

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

@@ -20,6 +20,7 @@ import java.security.cert.Certificate;
 import java.security.cert.X509Certificate;
 import java.util.ArrayList;
 import java.util.List;
+
 import javax.net.ssl.SSLSession;
 
 import org.springframework.lang.Nullable;

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

@@ -20,6 +20,7 @@ import java.io.IOException;
 import java.net.URISyntaxException;
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletRequest;

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

@@ -19,6 +19,7 @@ package org.springframework.http.server.reactive;
 import java.net.InetSocketAddress;
 import java.net.URI;
 import java.net.URISyntaxException;
+
 import javax.net.ssl.SSLSession;
 
 import io.netty.handler.codec.http.HttpHeaderNames;

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

@@ -20,6 +20,7 @@ import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.Collection;
 import java.util.concurrent.atomic.AtomicBoolean;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.AsyncEvent;
 import javax.servlet.AsyncListener;

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

@@ -24,6 +24,7 @@ import java.nio.charset.Charset;
 import java.security.cert.X509Certificate;
 import java.util.Enumeration;
 import java.util.Map;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.AsyncEvent;
 import javax.servlet.AsyncListener;

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

@@ -19,6 +19,7 @@ package org.springframework.http.server.reactive;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.Charset;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.AsyncEvent;
 import javax.servlet.AsyncListener;

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

@@ -21,6 +21,7 @@ import java.lang.reflect.Field;
 import java.net.URISyntaxException;
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.ServletRequest;
 import javax.servlet.ServletResponse;

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

@@ -22,6 +22,7 @@ import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.ByteBuffer;
 import java.util.concurrent.atomic.AtomicInteger;
+
 import javax.net.ssl.SSLSession;
 
 import io.undertow.connector.ByteBufferPool;

spring-web/src/main/java/org/springframework/remoting/caucho/HessianServiceExporter.java

@@ -17,6 +17,7 @@
 package org.springframework.remoting.caucho;
 
 import java.io.IOException;
+
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

spring-web/src/main/java/org/springframework/remoting/httpinvoker/HttpInvokerServiceExporter.java

@@ -22,6 +22,7 @@ import java.io.InputStream;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.io.OutputStream;
+
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

spring-web/src/main/java/org/springframework/remoting/jaxws/AbstractJaxWsServiceExporter.java

@@ -21,6 +21,7 @@ import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.Executor;
+
 import javax.jws.WebService;
 import javax.xml.ws.Endpoint;
 import javax.xml.ws.WebServiceFeature;

spring-web/src/main/java/org/springframework/remoting/jaxws/JaxWsPortClientInterceptor.java

@@ -22,6 +22,7 @@ import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.HashMap;
 import java.util.Map;
+
 import javax.jws.WebService;
 import javax.xml.namespace.QName;
 import javax.xml.ws.BindingProvider;

spring-web/src/main/java/org/springframework/remoting/jaxws/LocalJaxWsServiceFactory.java

@@ -19,6 +19,7 @@ package org.springframework.remoting.jaxws;
 import java.io.IOException;
 import java.net.URL;
 import java.util.concurrent.Executor;
+
 import javax.xml.namespace.QName;
 import javax.xml.ws.Service;
 import javax.xml.ws.WebServiceFeature;

spring-web/src/main/java/org/springframework/remoting/jaxws/SimpleHttpServerJaxWsServiceExporter.java

@@ -18,6 +18,7 @@ package org.springframework.remoting.jaxws;
 
 import java.net.InetSocketAddress;
 import java.util.List;
+
 import javax.jws.WebService;
 import javax.xml.ws.Endpoint;
 import javax.xml.ws.WebServiceProvider;

spring-web/src/main/java/org/springframework/web/HttpMediaTypeException.java

@@ -18,6 +18,7 @@ package org.springframework.web;
 
 import java.util.Collections;
 import java.util.List;
+
 import javax.servlet.ServletException;
 
 import org.springframework.http.MediaType;

spring-web/src/main/java/org/springframework/web/HttpRequestHandler.java

@@ -17,6 +17,7 @@
 package org.springframework.web;
 
 import java.io.IOException;
+
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

spring-web/src/main/java/org/springframework/web/HttpRequestMethodNotSupportedException.java

@@ -21,6 +21,7 @@ import java.util.EnumSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
+
 import javax.servlet.ServletException;
 
 import org.springframework.http.HttpMethod;

spring-web/src/main/java/org/springframework/web/SpringServletContainerInitializer.java

@@ -21,6 +21,7 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.ServiceLoader;
 import java.util.Set;
+
 import javax.servlet.ServletContainerInitializer;
 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;

spring-web/src/main/java/org/springframework/web/accept/ContentNegotiationManagerFactoryBean.java

@@ -22,6 +22,7 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.beans.factory.FactoryBean;

spring-web/src/main/java/org/springframework/web/accept/PathExtensionContentNegotiationStrategy.java

@@ -18,6 +18,7 @@ package org.springframework.web.accept;
 
 import java.util.Locale;
 import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.core.io.Resource;

spring-web/src/main/java/org/springframework/web/accept/ServletPathExtensionContentNegotiationStrategy.java

@@ -17,6 +17,7 @@
 package org.springframework.web.accept;
 
 import java.util.Map;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.core.io.Resource;

spring-web/src/main/java/org/springframework/web/context/ContextCleanupListener.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context;
 
 import java.util.Enumeration;
+
 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;

spring-web/src/main/java/org/springframework/web/context/ContextLoader.java

@@ -22,6 +22,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import java.util.concurrent.ConcurrentHashMap;
+
 import javax.servlet.ServletContext;
 
 import org.apache.commons.logging.Log;

spring-web/src/main/java/org/springframework/web/context/request/DestructionCallbackBindingListener.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context.request;
 
 import java.io.Serializable;
+
 import javax.servlet.http.HttpSessionBindingEvent;
 import javax.servlet.http.HttpSessionBindingListener;
 

spring-web/src/main/java/org/springframework/web/context/request/FacesRequestAttributes.java

@@ -18,6 +18,7 @@ package org.springframework.web.context.request;
 
 import java.lang.reflect.Method;
 import java.util.Map;
+
 import javax.faces.context.ExternalContext;
 import javax.faces.context.FacesContext;
 

spring-web/src/main/java/org/springframework/web/context/request/FacesWebRequest.java

@@ -20,6 +20,7 @@ import java.security.Principal;
 import java.util.Iterator;
 import java.util.Locale;
 import java.util.Map;
+
 import javax.faces.context.ExternalContext;
 import javax.faces.context.FacesContext;
 

spring-web/src/main/java/org/springframework/web/context/request/ServletRequestAttributes.java

@@ -20,6 +20,7 @@ import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;

spring-web/src/main/java/org/springframework/web/context/request/ServletWebRequest.java

@@ -28,6 +28,7 @@ import java.util.Map;
 import java.util.TimeZone;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;

spring-web/src/main/java/org/springframework/web/context/request/async/StandardServletAsyncWebRequest.java

@@ -21,6 +21,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Consumer;
+
 import javax.servlet.AsyncContext;
 import javax.servlet.AsyncEvent;
 import javax.servlet.AsyncListener;

spring-web/src/main/java/org/springframework/web/context/request/async/WebAsyncManager.java

@@ -23,6 +23,7 @@ import java.util.Map;
 import java.util.concurrent.Callable;
 import java.util.concurrent.Future;
 import java.util.concurrent.RejectedExecutionException;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.logging.Log;

spring-web/src/main/java/org/springframework/web/context/support/ContextExposingHttpServletRequest.java

@@ -18,6 +18,7 @@ package org.springframework.web.context.support;
 
 import java.util.HashSet;
 import java.util.Set;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletRequestWrapper;
 

spring-web/src/main/java/org/springframework/web/context/support/HttpRequestHandlerServlet.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context.support;
 
 import java.io.IOException;
+
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/context/support/LiveBeansViewServlet.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context.support;
 
 import java.io.IOException;
+
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/context/support/ServletContextAttributeExporter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context.support;
 
 import java.util.Map;
+
 import javax.servlet.ServletContext;
 
 import org.apache.commons.logging.Log;

spring-web/src/main/java/org/springframework/web/context/support/ServletContextLiveBeansView.java

@@ -19,6 +19,7 @@ package org.springframework.web.context.support;
 import java.util.Enumeration;
 import java.util.LinkedHashSet;
 import java.util.Set;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.context.ConfigurableApplicationContext;

spring-web/src/main/java/org/springframework/web/context/support/ServletContextResource.java

@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.net.MalformedURLException;
 import java.net.URL;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.core.io.AbstractFileResolvingResource;

spring-web/src/main/java/org/springframework/web/context/support/ServletContextResourcePatternResolver.java

@@ -22,6 +22,7 @@ import java.util.LinkedHashSet;
 import java.util.Set;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
+
 import javax.servlet.ServletContext;
 
 import org.apache.commons.logging.Log;

spring-web/src/main/java/org/springframework/web/context/support/ServletContextScope.java

@@ -18,6 +18,7 @@ package org.springframework.web.context.support;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.beans.factory.DisposableBean;

spring-web/src/main/java/org/springframework/web/context/support/WebApplicationContextUtils.java

@@ -21,6 +21,7 @@ import java.util.Collections;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
+
 import javax.faces.context.ExternalContext;
 import javax.faces.context.FacesContext;
 import javax.servlet.ServletConfig;

spring-web/src/main/java/org/springframework/web/context/support/WebApplicationObjectSupport.java

@@ -17,6 +17,7 @@
 package org.springframework.web.context.support;
 
 import java.io.File;
+
 import javax.servlet.ServletContext;
 
 import org.springframework.context.ApplicationContext;

spring-web/src/main/java/org/springframework/web/cors/CorsProcessor.java

@@ -17,6 +17,7 @@
 package org.springframework.web.cors;
 
 import java.io.IOException;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 

spring-web/src/main/java/org/springframework/web/cors/DefaultCorsProcessor.java

@@ -20,6 +20,7 @@ import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 

spring-web/src/main/java/org/springframework/web/cors/UrlBasedCorsConfigurationSource.java

@@ -19,6 +19,7 @@ package org.springframework.web.cors;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.lang.Nullable;

spring-web/src/main/java/org/springframework/web/filter/AbstractRequestLoggingFilter.java

@@ -20,6 +20,7 @@ import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.util.Enumeration;
 import java.util.function.Predicate;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/CharacterEncodingFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/CompositeFilter.java

@@ -19,6 +19,7 @@ package org.springframework.web.filter;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
 import javax.servlet.FilterConfig;

spring-web/src/main/java/org/springframework/web/filter/CorsFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/DelegatingFilterProxy.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;

spring-web/src/main/java/org/springframework/web/filter/FormContentFilter.java

@@ -28,6 +28,7 @@ import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/ForwardedHeaderFilter.java

@@ -24,6 +24,7 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Supplier;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/GenericFilterBean.java

@@ -19,6 +19,7 @@ package org.springframework.web.filter;
 import java.util.Enumeration;
 import java.util.HashSet;
 import java.util.Set;
+
 import javax.servlet.Filter;
 import javax.servlet.FilterConfig;
 import javax.servlet.ServletContext;

spring-web/src/main/java/org/springframework/web/filter/HiddenHttpMethodFilter.java

@@ -21,6 +21,7 @@ import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/HttpPutFormContentFilter.java

@@ -28,6 +28,7 @@ import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/OncePerRequestFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.DispatcherType;
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;

spring-web/src/main/java/org/springframework/web/filter/RelativeRedirectFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/RequestContextFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.filter;
 
 import java.io.IOException;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/filter/ShallowEtagHeaderFilter.java

@@ -19,6 +19,7 @@ package org.springframework.web.filter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintWriter;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;

spring-web/src/main/java/org/springframework/web/jsf/DelegatingPhaseListenerMulticaster.java

@@ -17,6 +17,7 @@
 package org.springframework.web.jsf;
 
 import java.util.Collection;
+
 import javax.faces.context.FacesContext;
 import javax.faces.event.PhaseEvent;
 import javax.faces.event.PhaseId;

spring-web/src/main/java/org/springframework/web/jsf/el/SpringBeanFacesELResolver.java

@@ -18,6 +18,7 @@ package org.springframework.web.jsf.el;
 
 import java.beans.FeatureDescriptor;
 import java.util.Iterator;
+
 import javax.el.ELContext;
 import javax.el.ELException;
 import javax.el.ELResolver;

spring-web/src/main/java/org/springframework/web/jsf/el/WebApplicationContextFacesELResolver.java

@@ -18,6 +18,7 @@ package org.springframework.web.jsf.el;
 
 import java.beans.FeatureDescriptor;
 import java.util.Iterator;
+
 import javax.el.ELContext;
 import javax.el.ELException;
 import javax.el.ELResolver;

spring-web/src/main/java/org/springframework/web/method/annotation/AbstractNamedValueMethodArgumentResolver.java

@@ -18,6 +18,7 @@ package org.springframework.web.method.annotation;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+
 import javax.servlet.ServletException;
 
 import org.springframework.beans.ConversionNotSupportedException;

spring-web/src/main/java/org/springframework/web/method/annotation/RequestParamMapMethodArgumentResolver.java

@@ -19,6 +19,7 @@ package org.springframework.web.method.annotation;
 import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.Part;
 

spring-web/src/main/java/org/springframework/web/method/annotation/RequestParamMethodArgumentResolver.java

@@ -21,6 +21,7 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.Part;
 

spring-web/src/main/java/org/springframework/web/multipart/commons/CommonsMultipartResolver.java

@@ -17,6 +17,7 @@
 package org.springframework.web.multipart.commons;
 
 import java.util.List;
+
 import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServletRequest;
 

spring-web/src/main/java/org/springframework/web/multipart/support/AbstractMultipartHttpServletRequest.java

@@ -21,6 +21,7 @@ import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletRequestWrapper;
 

spring-web/src/main/java/org/springframework/web/multipart/support/DefaultMultipartHttpServletRequest.java

@@ -22,6 +22,7 @@ import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.http.HttpHeaders;

spring-web/src/main/java/org/springframework/web/multipart/support/MultipartFilter.java

@@ -17,6 +17,7 @@
 package org.springframework.web.multipart.support;
 
 import java.io.IOException;
+
 import javax.servlet.FilterChain;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

spring-web/src/main/java/org/springframework/web/multipart/support/MultipartResolutionDelegate.java

@@ -19,6 +19,7 @@ package org.springframework.web.multipart.support;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.Part;
 

spring-web/src/main/java/org/springframework/web/multipart/support/RequestPartServletServerHttpRequest.java

@@ -20,6 +20,7 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.Charset;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.http.HttpHeaders;

spring-web/src/main/java/org/springframework/web/multipart/support/StandardMultipartHttpServletRequest.java

@@ -31,6 +31,7 @@ import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;
+
 import javax.mail.internet.MimeUtility;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.Part;

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

@@ -26,6 +26,7 @@ import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+
 import javax.servlet.ReadListener;
 import javax.servlet.ServletInputStream;
 import javax.servlet.http.HttpServletRequest;

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

@@ -21,6 +21,7 @@ import java.io.InputStream;
 import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.io.UnsupportedEncodingException;
+
 import javax.servlet.ServletOutputStream;
 import javax.servlet.WriteListener;
 import javax.servlet.http.HttpServletResponse;

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

@@ -17,6 +17,7 @@
 package org.springframework.web.util;
 
 import java.io.Serializable;
+
 import javax.servlet.http.HttpSessionEvent;
 import javax.servlet.http.HttpSessionListener;
 

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

@@ -17,6 +17,7 @@
 package org.springframework.web.util;
 
 import java.beans.Introspector;
+
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;
 

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

@@ -21,6 +21,7 @@ import java.nio.charset.UnsupportedCharsetException;
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Properties;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.logging.Log;

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

@@ -24,6 +24,7 @@ import java.util.Enumeration;
 import java.util.Map;
 import java.util.StringTokenizer;
 import java.util.TreeMap;
+
 import javax.servlet.ServletContext;
 import javax.servlet.ServletRequest;
 import javax.servlet.ServletRequestWrapper;