diff --git a/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/AbstractAutoProxyCreator.java b/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/AbstractAutoProxyCreator.java
index 79c1fe20ca..746fd1d3d4 100644
--- a/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/AbstractAutoProxyCreator.java
+++ b/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/AbstractAutoProxyCreator.java
@@ -510,7 +510,7 @@ public abstract class AbstractAutoProxyCreator extends ProxyProcessorSupport
 		List<Object> allInterceptors = new ArrayList<>();
 		if (specificInterceptors != null) {
 			if (specificInterceptors.length > 0) {
-				// specificInterceptors may equals PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS
+				// specificInterceptors may equal PROXY_WITHOUT_ADDITIONAL_INTERCEPTORS
 				allInterceptors.addAll(Arrays.asList(specificInterceptors));
 			}
 			if (commonInterceptors.length > 0) {
diff --git a/spring-context/src/main/java/org/springframework/validation/annotation/ValidationAnnotationUtils.java b/spring-context/src/main/java/org/springframework/validation/annotation/ValidationAnnotationUtils.java
index 05a265247b..196f6fc6c7 100644
--- a/spring-context/src/main/java/org/springframework/validation/annotation/ValidationAnnotationUtils.java
+++ b/spring-context/src/main/java/org/springframework/validation/annotation/ValidationAnnotationUtils.java
@@ -30,6 +30,8 @@ import org.springframework.lang.Nullable;
  */
 public abstract class ValidationAnnotationUtils {
 
+	private static final Object[] EMPTY_OBJECT_ARRAY = new Object[0];
+
 	/**
 	 * Determine any validation hints by the given annotation.
 	 * <p>This implementation checks for {@code @javax.validation.Valid},
@@ -38,14 +40,13 @@ public abstract class ValidationAnnotationUtils {
 	 * @param ann the annotation (potentially a validation annotation)
 	 * @return the validation hints to apply (possibly an empty array),
 	 * or {@code null} if this annotation does not trigger any validation
-	 * @since 5.3.7
 	 */
 	@Nullable
 	public static Object[] determineValidationHints(Annotation ann) {
 		Class<? extends Annotation> annotationType = ann.annotationType();
 		String annotationName = annotationType.getName();
 		if ("javax.validation.Valid".equals(annotationName)) {
-			return new Object[0];
+			return EMPTY_OBJECT_ARRAY;
 		}
 		Validated validatedAnn = AnnotationUtils.getAnnotation(ann, Validated.class);
 		if (validatedAnn != null) {
@@ -61,7 +62,7 @@ public abstract class ValidationAnnotationUtils {
 
 	private static Object[] convertValidationHints(@Nullable Object hints) {
 		if (hints == null) {
-			return new Object[0];
+			return EMPTY_OBJECT_ARRAY;
 		}
 		return (hints instanceof Object[] ? (Object[]) hints : new Object[]{hints});
 	}
diff --git a/spring-context/src/test/java/org/springframework/format/datetime/DateFormattingTests.java b/spring-context/src/test/java/org/springframework/format/datetime/DateFormattingTests.java
index df7729181f..77db53f069 100644
--- a/spring-context/src/test/java/org/springframework/format/datetime/DateFormattingTests.java
+++ b/spring-context/src/test/java/org/springframework/format/datetime/DateFormattingTests.java
@@ -130,7 +130,6 @@ public class DateFormattingTests {
 		assertThat(bindingResult.getErrorCount()).isEqualTo(1);
 		FieldError fieldError = bindingResult.getFieldError(propertyName);
 		TypeMismatchException exception = fieldError.unwrap(TypeMismatchException.class);
-		exception.printStackTrace(System.err);
 		assertThat(exception)
 			.hasMessageContaining("for property 'styleDate'")
 			.hasCauseInstanceOf(ConversionFailedException.class).getCause()
diff --git a/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletResponseTests.java b/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletResponseTests.java
index 02e90ba16f..1b45d2d36c 100644
--- a/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletResponseTests.java
+++ b/spring-test/src/test/java/org/springframework/mock/web/MockHttpServletResponseTests.java
@@ -496,7 +496,6 @@ class MockHttpServletResponseTests {
 		String expiryDate = "Tue, 8 Oct 2019 19:50:00 GMT";
 		String cookieValue = "SESSION=123; Path=/; Expires=" + expiryDate;
 		response.addHeader(SET_COOKIE, cookieValue);
-		System.err.println(response.getCookie("SESSION"));
 		assertThat(response.getHeader(SET_COOKIE)).isEqualTo(cookieValue);
 
 		assertNumCookies(1);
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFunction.java b/spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFunction.java
index bb69193e5e..6d35b6594c 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFunction.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFunction.java
@@ -44,7 +44,7 @@ public interface ExchangeFunction {
 	/**
 	 * Exchange the given request for a {@link ClientResponse} promise.
 	 *
-	 * <p><strong>Note:</strong> When a calling this method from an
+	 * <p><strong>Note:</strong> When calling this method from an
 	 * {@link ExchangeFilterFunction} that handles the response in some way,
 	 * extra care must be taken to always consume its content or otherwise
 	 * propagate it downstream for further handling, for example by the
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/FrameworkServlet.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/FrameworkServlet.java
index c8cddf01e4..6d3e8d3d2b 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/FrameworkServlet.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/FrameworkServlet.java
@@ -1085,7 +1085,7 @@ public abstract class FrameworkServlet extends HttpServletBean implements Applic
 		}
 
 		DispatcherType dispatchType = request.getDispatcherType();
-		boolean initialDispatch = DispatcherType.REQUEST.equals(request.getDispatcherType());
+		boolean initialDispatch = DispatcherType.REQUEST == dispatchType;
 
 		if (failureCause != null) {
 			if (!initialDispatch) {