diff --git a/spring-test/src/main/java/org/springframework/test/web/servlet/htmlunit/HtmlUnitRequestBuilder.java b/spring-test/src/main/java/org/springframework/test/web/servlet/htmlunit/HtmlUnitRequestBuilder.java
index 3b97cd92ec7..29e54519b44 100644
--- a/spring-test/src/main/java/org/springframework/test/web/servlet/htmlunit/HtmlUnitRequestBuilder.java
+++ b/spring-test/src/main/java/org/springframework/test/web/servlet/htmlunit/HtmlUnitRequestBuilder.java
@@ -259,7 +259,8 @@ final class HtmlUnitRequestBuilder implements RequestBuilder, Mergeable {
 		}
 		else {
 			Assert.isTrue(uriComponents.getPath().startsWith(this.contextPath),
-					() -> uriComponents.getPath() + " should start with contextPath " + this.contextPath);
+					() -> "\"" + uriComponents.getPath() +
+							"\" should start with context path \"" + this.contextPath + "\"");
 			request.setContextPath(this.contextPath);
 		}
 	}
@@ -273,7 +274,8 @@ final class HtmlUnitRequestBuilder implements RequestBuilder, Mergeable {
 			while (tokens.hasMoreTokens()) {
 				String cookieName = tokens.nextToken().trim();
 				Assert.isTrue(tokens.hasMoreTokens(),
-						() -> "Expected value for cookie name '" + cookieName + "'. Full cookie was " + cookieHeaderValue);
+						() -> "Expected value for cookie name '" + cookieName +
+								"': full cookie header was [" + cookieHeaderValue + "]");
 				String cookieValue = tokens.nextToken().trim();
 				processCookie(request, cookies, new Cookie(cookieName, cookieValue));
 			}
@@ -384,7 +386,7 @@ final class HtmlUnitRequestBuilder implements RequestBuilder, Mergeable {
 
 	private Locale parseLocale(String locale) {
 		Matcher matcher = LOCALE_PATTERN.matcher(locale);
-		Assert.isTrue(matcher.matches(), () -> "Invalid locale " + locale);
+		Assert.isTrue(matcher.matches(), () -> "Invalid locale value [" + locale + "]");
 		String language = matcher.group(1);
 		String country = matcher.group(2);
 		if (country == null) {
diff --git a/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java b/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java
index 0dea59e6cb2..11f4d0ea09f 100644
--- a/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java
+++ b/spring-web/src/test/java/org/springframework/web/client/RestTemplateIntegrationTests.java
@@ -72,7 +72,6 @@ public class RestTemplateIntegrationTests extends AbstractMockWebServerTestCase
 	public ClientHttpRequestFactory clientHttpRequestFactory;
 
 	@Parameters
-	@SuppressWarnings("deprecation")
 	public static Iterable<? extends ClientHttpRequestFactory> data() {
 		return Arrays.asList(
 				new SimpleClientHttpRequestFactory(),
diff --git a/spring-web/src/test/java/org/springframework/web/client/RestTemplateTests.java b/spring-web/src/test/java/org/springframework/web/client/RestTemplateTests.java
index a1daae38068..8ab8b9a0bb3 100644
--- a/spring-web/src/test/java/org/springframework/web/client/RestTemplateTests.java
+++ b/spring-web/src/test/java/org/springframework/web/client/RestTemplateTests.java
@@ -146,7 +146,7 @@ public class RestTemplateTests {
 		verify(response).close();
 	}
 
-	@Test // SPR-15201
+	@Test  // SPR-15201
 	public void uriTemplateWithTrailingSlash() throws Exception {
 		String url = "http://example.com/spring/";
 		given(requestFactory.createRequest(new URI(url), HttpMethod.GET)).willReturn(request);
@@ -280,7 +280,6 @@ public class RestTemplateTests {
 
 	@Test
 	public void getForObjectWithCustomUriTemplateHandler() throws Exception {
-
 		DefaultUriBuilderFactory uriTemplateHandler = new DefaultUriBuilderFactory();
 		template.setUriTemplateHandler(uriTemplateHandler);
 
@@ -306,7 +305,6 @@ public class RestTemplateTests {
 		verify(response).close();
 	}
 
-
 	@Test
 	public void headForHeaders() throws Exception {
 		given(requestFactory.createRequest(new URI("http://example.com"), HttpMethod.HEAD)).willReturn(request);