Add blank line between java and javax imports

See gh-23539

spring-core/src/test/java/org/springframework/core/annotation/AnnotatedElementUtilsTests.java

@@ -29,6 +29,7 @@ import java.lang.reflect.Method;
 import java.util.Date;
 import java.util.List;
 import java.util.Set;
+
 import javax.annotation.Nonnull;
 import javax.annotation.ParametersAreNonnullByDefault;
 import javax.annotation.Resource;

spring-core/src/test/java/org/springframework/core/annotation/AnnotationAwareOrderComparatorTests.java

@@ -18,6 +18,7 @@ package org.springframework.core.annotation;
 
 import java.util.ArrayList;
 import java.util.List;
+
 import javax.annotation.Priority;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/core/annotation/AnnotationFilterTests.java

@@ -18,6 +18,7 @@ package org.springframework.core.annotation;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+
 import javax.annotation.Nonnull;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/core/annotation/AnnotationTypeMappingsTests.java

@@ -28,6 +28,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+
 import javax.annotation.Nullable;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/core/annotation/AnnotationUtilsTests.java

@@ -29,6 +29,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+
 import javax.annotation.Nonnull;
 import javax.annotation.ParametersAreNonnullByDefault;
 

spring-core/src/test/java/org/springframework/core/annotation/MergedAnnotationsTests.java

@@ -34,6 +34,7 @@ import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
+
 import javax.annotation.Resource;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/core/type/AnnotationTypeFilterTests.java

@@ -16,6 +16,7 @@
 
 package org.springframework.core.type;
 
+import example.type.AnnotationTypeFilterTestsTypes;
 import example.type.InheritedAnnotation;
 import example.type.NonInheritedAnnotation;
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/core/type/AspectJTypeFilterTests.java

@@ -16,6 +16,7 @@
 
 package org.springframework.core.type;
 
+import example.type.AspectJTypeFilterTestsTypes;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.core.type.classreading.MetadataReader;

spring-core/src/test/java/org/springframework/util/Base64UtilsTests.java

@@ -17,6 +17,7 @@
 package org.springframework.util;
 
 import java.io.UnsupportedEncodingException;
+
 import javax.xml.bind.DatatypeConverter;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/util/SocketUtilsTests.java

@@ -20,6 +20,7 @@ import java.net.DatagramSocket;
 import java.net.InetAddress;
 import java.net.ServerSocket;
 import java.util.SortedSet;
+
 import javax.net.ServerSocketFactory;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/util/xml/AbstractStaxHandlerTestCase.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.StringReader;
 import java.io.StringWriter;
+
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.stream.XMLStreamException;

spring-core/src/test/java/org/springframework/util/xml/AbstractStaxXMLReaderTestCase.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
+
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.transform.Transformer;

spring-core/src/test/java/org/springframework/util/xml/DomContentHandlerTests.java

@@ -17,6 +17,7 @@
 package org.springframework.util.xml;
 
 import java.io.StringReader;
+
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 

spring-core/src/test/java/org/springframework/util/xml/ListBasedXMLEventReaderTests.java

@@ -20,6 +20,7 @@ import java.io.StringReader;
 import java.io.StringWriter;
 import java.util.ArrayList;
 import java.util.List;
+
 import javax.xml.stream.XMLEventReader;
 import javax.xml.stream.XMLEventWriter;
 import javax.xml.stream.XMLInputFactory;

spring-core/src/test/java/org/springframework/util/xml/SimpleNamespaceContextTests.java

@@ -19,6 +19,7 @@ package org.springframework.util.xml;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.Set;
+
 import javax.xml.XMLConstants;
 
 import org.junit.jupiter.api.Test;

spring-core/src/test/java/org/springframework/util/xml/StaxEventXMLReaderTests.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.InputStream;
 import java.io.StringReader;
+
 import javax.xml.stream.XMLEventReader;
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.stream.XMLStreamException;

spring-core/src/test/java/org/springframework/util/xml/StaxResultTests.java

@@ -19,6 +19,7 @@ package org.springframework.util.xml;
 import java.io.Reader;
 import java.io.StringReader;
 import java.io.StringWriter;
+
 import javax.xml.stream.XMLEventWriter;
 import javax.xml.stream.XMLOutputFactory;
 import javax.xml.stream.XMLStreamWriter;

spring-core/src/test/java/org/springframework/util/xml/StaxSourceTests.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.StringReader;
 import java.io.StringWriter;
+
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.stream.XMLEventReader;

spring-core/src/test/java/org/springframework/util/xml/StaxStreamXMLReaderTests.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.InputStream;
 import java.io.StringReader;
+
 import javax.xml.namespace.QName;
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.stream.XMLStreamException;

spring-core/src/test/java/org/springframework/util/xml/StaxUtilsTests.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.StringReader;
 import java.io.StringWriter;
+
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.stream.XMLOutputFactory;
 import javax.xml.stream.XMLStreamReader;

spring-core/src/test/java/org/springframework/util/xml/TransformerUtilsTests.java

@@ -17,6 +17,7 @@
 package org.springframework.util.xml;
 
 import java.util.Properties;
+
 import javax.xml.transform.ErrorListener;
 import javax.xml.transform.OutputKeys;
 import javax.xml.transform.Result;

spring-core/src/test/java/org/springframework/util/xml/XMLEventStreamReaderTests.java

@@ -18,6 +18,7 @@ package org.springframework.util.xml;
 
 import java.io.StringReader;
 import java.io.StringWriter;
+
 import javax.xml.stream.XMLEventReader;
 import javax.xml.stream.XMLInputFactory;
 import javax.xml.transform.Transformer;

spring-core/src/test/java/org/springframework/util/xml/XMLEventStreamWriterTests.java

@@ -17,6 +17,7 @@
 package org.springframework.util.xml;
 
 import java.io.StringWriter;
+
 import javax.xml.stream.XMLEventFactory;
 import javax.xml.stream.XMLEventWriter;
 import javax.xml.stream.XMLOutputFactory;