diff --git a/spring-ws-test/src/main/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcher.java b/spring-ws-test/src/main/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcher.java
index dd2fb893..cb5e3be2 100644
--- a/spring-ws-test/src/main/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcher.java
+++ b/spring-ws-test/src/main/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcher.java
@@ -16,7 +16,7 @@
 
 package org.springframework.ws.test.support.matcher.xmlunit2;
 
-import static org.springframework.ws.test.support.AssertionErrors.fail;
+import static org.springframework.ws.test.support.AssertionErrors.*;
 
 import javax.xml.transform.Source;
 import javax.xml.transform.TransformerException;
@@ -33,6 +33,7 @@ import org.xmlunit.diff.Diff;
  * Matches {@link Source} payloads.
  *
  * @author Greg Turnquist
+ * @author Mikołaj Fejzer
  * @since 4.0
  */
 public class PayloadDiffMatcher extends DiffMatcher {
@@ -42,22 +43,28 @@ public class PayloadDiffMatcher extends DiffMatcher {
 	private final TransformerHelper transformerHelper = new TransformerHelper();
 
 	public PayloadDiffMatcher(Source expected) {
+
 		Assert.notNull(expected, "'expected' must not be null");
 		this.expected = expected;
 	}
 
 	@Override
 	protected final Diff createDiff(WebServiceMessage message) {
+
 		Source payload = message.getPayloadSource();
+
 		if (payload == null) {
 			fail("Request message does not contain payload");
 		}
+
 		return createDiff(payload);
 	}
 
 	protected Diff createDiff(Source payload) {
+
 		Document expectedDocument = createDocumentFromSource(expected);
 		Document actualDocument = createDocumentFromSource(payload);
+
 		return DiffBuilder.compare(expectedDocument) //
 				.withTest(actualDocument) //
 				.ignoreWhitespace() //
@@ -66,11 +73,14 @@ public class PayloadDiffMatcher extends DiffMatcher {
 	}
 
 	private Document createDocumentFromSource(Source source) {
+
 		try {
+
 			DOMResult result = new DOMResult();
 			transformerHelper.transform(source, result);
 			return (Document) result.getNode();
 		} catch (TransformerException ex) {
+
 			fail("Could not transform source to DOMResult" + ex.getMessage());
 			return null;
 		}
diff --git a/spring-ws-test/src/test/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcherTest.java b/spring-ws-test/src/test/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcherTest.java
index 7726327f..208200a0 100644
--- a/spring-ws-test/src/test/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcherTest.java
+++ b/spring-ws-test/src/test/java/org/springframework/ws/test/support/matcher/xmlunit2/PayloadDiffMatcherTest.java
@@ -16,17 +16,13 @@
 
 package org.springframework.ws.test.support.matcher.xmlunit2;
 
-import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
-import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.expect;
-import static org.easymock.EasyMock.replay;
-import static org.easymock.EasyMock.verify;
+import static org.assertj.core.api.Assertions.*;
+import static org.easymock.EasyMock.*;
 
 import jakarta.xml.soap.MessageFactory;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.ws.WebServiceMessage;
-import org.springframework.ws.soap.SoapMessage;
 import org.springframework.ws.soap.saaj.SaajSoapMessage;
 import org.springframework.xml.transform.StringSource;
 
@@ -35,12 +31,13 @@ public class PayloadDiffMatcherTest {
 	@Test
 	public void match() {
 
-		String xml = "<element xmlns='http://example.com'/>";
+		var xml = "<element xmlns='http://example.com'/>";
 		WebServiceMessage message = createMock(WebServiceMessage.class);
+
 		expect(message.getPayloadSource()).andReturn(new StringSource(xml)).times(2);
 		replay(message);
 
-		PayloadDiffMatcher matcher = new PayloadDiffMatcher(new StringSource(xml));
+		var matcher = new PayloadDiffMatcher(new StringSource(xml));
 		matcher.match(message);
 
 		verify(message);
@@ -49,31 +46,32 @@ public class PayloadDiffMatcherTest {
 	@Test
 	public void matchIgnoringWhitespace() {
 
-		String xml = "<response><success>true</success></response>";
-		String xmlWithAdditionalWhitespace = "<response> <success>true</success> </response>";
+		var xml = "<response><success>true</success></response>";
+		var xmlWithAdditionalWhitespace = "<response> <success>true</success> </response>";
 		WebServiceMessage message = createMock(WebServiceMessage.class);
+
 		expect(message.getPayloadSource()).andReturn(new StringSource(xml)).times(2);
 		replay(message);
 
-		PayloadDiffMatcher matcher = new PayloadDiffMatcher(new StringSource(xmlWithAdditionalWhitespace));
+		var matcher = new PayloadDiffMatcher(new StringSource(xmlWithAdditionalWhitespace));
 		matcher.match(message);
 
 		verify(message);
 	}
 
-
 	@Test
 	public void nonMatch() {
 
 		assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {
 
-			String actual = "<element1 xmlns='http://example.com'/>";
+			var actual = "<element1 xmlns='http://example.com'/>";
 			WebServiceMessage message = createMock(WebServiceMessage.class);
+
 			expect(message.getPayloadSource()).andReturn(new StringSource(actual)).times(2);
 			replay(message);
 
-			String expected = "<element2 xmlns='http://example.com'/>";
-			PayloadDiffMatcher matcher = new PayloadDiffMatcher(new StringSource(expected));
+			var expected = "<element2 xmlns='http://example.com'/>";
+			var matcher = new PayloadDiffMatcher(new StringSource(expected));
 			matcher.match(message);
 		});
 	}
@@ -83,12 +81,11 @@ public class PayloadDiffMatcherTest {
 
 		assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> {
 
-			PayloadDiffMatcher matcher = new PayloadDiffMatcher(new StringSource("<message/>"));
-			MessageFactory messageFactory = MessageFactory.newInstance();
-			SoapMessage soapMessage = new SaajSoapMessage(messageFactory.createMessage());
+			var matcher = new PayloadDiffMatcher(new StringSource("<message/>"));
+			var messageFactory = MessageFactory.newInstance();
+			var soapMessage = new SaajSoapMessage(messageFactory.createMessage());
 
 			matcher.createDiff(soapMessage);
 		});
 	}
-
 }