Use List.of() and Set.of() where feasible.

Closes #3231

Author: quaff

src/main/java/org/springframework/data/convert/Jsr310Converters.java

@@ -28,7 +28,6 @@
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
@@ -49,7 +48,7 @@
  */
 public abstract class Jsr310Converters {
 
-	private static final List<Class<?>> CLASSES = Arrays.asList(LocalDateTime.class, LocalDate.class, LocalTime.class,
+	private static final List<Class<?>> CLASSES = List.of(LocalDateTime.class, LocalDate.class, LocalTime.class,
 			Instant.class, ZoneId.class, Duration.class, Period.class);
 
 	/**

src/main/java/org/springframework/data/repository/query/Parameters.java

@@ -19,7 +19,6 @@
 
 import java.lang.reflect.Method;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 import java.util.function.Function;
@@ -48,7 +47,7 @@
  */
 public abstract class Parameters<S extends Parameters<S, T>, T extends Parameter> implements Streamable<T> {
 
-	public static final List<Class<?>> TYPES = Arrays.asList(ScrollPosition.class, Pageable.class, Sort.class,
+	public static final List<Class<?>> TYPES = List.of(ScrollPosition.class, Pageable.class, Sort.class,
 			Limit.class);
 
 	private static final String PARAM_ON_SPECIAL = format("You must not use @%s on a parameter typed %s or %s",

src/main/java/org/springframework/data/repository/query/ReturnedType.java

@@ -17,9 +17,7 @@
 
 import java.beans.PropertyDescriptor;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -229,7 +227,7 @@ public List<String> getInputProperties() {
 	 */
 	private static final class ReturnedClass extends ReturnedType {
 
-		private static final Set<Class<?>> VOID_TYPES = new HashSet<>(Arrays.asList(Void.class, void.class));
+		private static final Set<Class<?>> VOID_TYPES = Set.of(Void.class, void.class);
 
 		private final Class<?> type;
 		private final boolean isDto;

src/main/java/org/springframework/data/repository/query/ValueExpressionQueryRewriter.java

@@ -16,7 +16,6 @@
 package org.springframework.data.repository.query;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -376,7 +375,7 @@ public Map<String, ValueExpression> getParameterMap() {
 	 */
 	static class QuotationMap {
 
-		private static final Collection<Character> QUOTING_CHARACTERS = Arrays.asList('"', '\'');
+		private static final Collection<Character> QUOTING_CHARACTERS = List.of('"', '\'');
 
 		private final List<Range<Integer>> quotedRanges = new ArrayList<>();
 

src/main/java/org/springframework/data/repository/query/parser/OrderBySource.java

@@ -16,8 +16,6 @@
 package org.springframework.data.repository.query.parser;
 
 import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
@@ -46,7 +44,7 @@ class OrderBySource {
 	private static final String BLOCK_SPLIT = "(?<=Asc|Desc)(?=\\p{Lu})";
 	private static final Pattern DIRECTION_SPLIT = Pattern.compile("(.+?)(Asc|Desc)?$");
 	private static final String INVALID_ORDER_SYNTAX = "Invalid order syntax for part %s";
-	private static final Set<String> DIRECTION_KEYWORDS = new HashSet<>(Arrays.asList("Asc", "Desc"));
+	private static final Set<String> DIRECTION_KEYWORDS = Set.of("Asc", "Desc");
 
 	private final List<Order> orders;
 

src/main/java/org/springframework/data/repository/query/parser/Part.java

@@ -204,7 +204,7 @@ public enum Type {
 
 		// Need to list them again explicitly as the order is important
 		// (esp. for IS_NULL, IS_NOT_NULL)
-		private static final List<Part.Type> ALL = Arrays.asList(IS_NOT_NULL, IS_NULL, BETWEEN, LESS_THAN, LESS_THAN_EQUAL,
+		private static final List<Part.Type> ALL = List.of(IS_NOT_NULL, IS_NULL, BETWEEN, LESS_THAN, LESS_THAN_EQUAL,
 				GREATER_THAN, GREATER_THAN_EQUAL, BEFORE, AFTER, NOT_LIKE, LIKE, STARTING_WITH, ENDING_WITH, IS_NOT_EMPTY,
 				IS_EMPTY, NOT_CONTAINING, CONTAINING, NOT_IN, IN, NEAR, WITHIN, REGEX, EXISTS, TRUE, FALSE,
 				NEGATING_SIMPLE_PROPERTY, SIMPLE_PROPERTY);

src/main/java/org/springframework/data/util/NullableUtils.java

@@ -20,8 +20,6 @@
 import java.lang.reflect.AnnotatedElement;
 import java.lang.reflect.Method;
 import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -91,8 +89,8 @@ public abstract class NullableUtils {
 	private static final Set<Class<?>> NON_NULLABLE_ANNOTATIONS = findClasses("reactor.util.lang.NonNullApi",
 			NonNullApi.class.getName());
 
-	private static final Set<String> WHEN_NULLABLE = new HashSet<>(Arrays.asList("UNKNOWN", "MAYBE", "NEVER"));
-	private static final Set<String> WHEN_NON_NULLABLE = new HashSet<>(Collections.singletonList("ALWAYS"));
+	private static final Set<String> WHEN_NULLABLE = Set.of("UNKNOWN", "MAYBE", "NEVER");
+	private static final Set<String> WHEN_NON_NULLABLE = Set.of("ALWAYS");
 
 	private NullableUtils() {}
 

src/main/java/org/springframework/data/util/TypeCollector.java

@@ -56,10 +56,9 @@ public class TypeCollector {
 
 	private static final Log logger = LogFactory.getLog(TypeCollector.class);
 
-	static final Set<String> EXCLUDED_DOMAINS = new HashSet<>(
-			Arrays.asList("java", "sun.", "jdk.", "reactor.", "kotlinx.", "kotlin.", "org.springframework.core.",
+	static final Set<String> EXCLUDED_DOMAINS = Set.of("java", "sun.", "jdk.", "reactor.", "kotlinx.", "kotlin.", "org.springframework.core.",
 					"org.springframework.data.mapping.", "org.springframework.data.repository.", "org.springframework.boot.",
-					"org.springframework.context.", "org.springframework.beans."));
+					"org.springframework.context.", "org.springframework.beans.");
 
 	private final Predicate<Class<?>> excludedDomainsFilter = type -> {
 		String packageName = type.getPackageName() + ".";

src/main/java/org/springframework/data/web/ProxyingHandlerMethodArgumentResolver.java

@@ -46,7 +46,7 @@
 public class ProxyingHandlerMethodArgumentResolver extends ModelAttributeMethodProcessor
 		implements BeanFactoryAware, BeanClassLoaderAware {
 
-	private static final List<String> IGNORED_PACKAGES = Arrays.asList("java", "org.springframework");
+	private static final List<String> IGNORED_PACKAGES = List.of("java", "org.springframework");
 
 	private final SpelAwareProxyProjectionFactory proxyFactory;
 	private final ObjectFactory<ConversionService> conversionService;