Fix outdated Javadoc.

Closes #2860

src/test/java/org/springframework/data/web/PageableHandlerMethodArgumentResolverUnitTests.java

@@ -149,7 +149,7 @@ class PageableHandlerMethodArgumentResolverUnitTests extends PageableDefaultUnit
 	}
 
 	@Test // DATACMNS-477
-	void returnsNullIfFallbackIsUnpagedAndNoParametersGiven() throws Exception {
+	void returnsUnpagedIfFallbackIsUnpagedAndNoParametersGiven() throws Exception {
 
 		var resolver = getResolver();
 		resolver.setFallbackPageable(Pageable.unpaged());

src/test/java/org/springframework/data/web/ReactivePageableHandlerMethodArgumentResolverUnitTests.java

@@ -132,7 +132,7 @@ class ReactivePageableHandlerMethodArgumentResolverUnitTests {
 	}
 
 	@Test // DATACMNS-1211
-	void returnsNullIfFallbackIsUnpagedAndNoParametersGiven() {
+	void returnsUnpagedIfFallbackIsUnpagedAndNoParametersGiven() {
 
 		var resolver = getReactiveResolver();
 		resolver.setFallbackPageable(Pageable.unpaged());

src/test/java/org/springframework/data/web/ReactiveSortHandlerMethodArgumentResolverUnitTests.java

@@ -55,7 +55,7 @@ class ReactiveSortHandlerMethodArgumentResolverUnitTests {
 	}
 
 	@Test // DATACMNS-1211
-	void returnsNullForNoDefault() {
+	void returnsUnsortedForNoDefault() {
 		assertSupportedAndResolvedTo(getParameterOfMethod("supportedMethod"), Sort.unsorted());
 	}
 

src/test/java/org/springframework/data/web/SortDefaultUnitTests.java

@@ -69,7 +69,7 @@ abstract class SortDefaultUnitTests {
 	}
 
 	@Test
-	void returnsNullForNoDefault() throws Exception {
+	void returnsUnsortedForNoDefault() throws Exception {
 		assertSupportedAndResolvedTo(getParameterOfMethod("supportedMethod"), Sort.unsorted());
 	}
 

src/test/java/org/springframework/data/web/SortHandlerMethodArgumentResolverUnitTests.java

@@ -107,7 +107,7 @@ class SortHandlerMethodArgumentResolverUnitTests extends SortDefaultUnitTests {
 	}
 
 	@Test
-	void returnsNullForSortParameterSetToNothing() {
+	void returnsUnsortedForSortParameterSetToNothing() {
 
 		var parameter = getParameterOfMethod("supportedMethod");