Polishing.

Remove superfluous declarations, fix toString description.

See #2824

src/main/java/org/springframework/data/domain/ScrollPosition.java

@@ -38,7 +38,7 @@ public interface ScrollPosition {
 	 *
 	 * @return will never be {@literal null}.
 	 */
-	public static KeysetScrollPosition keyset() {
+	static KeysetScrollPosition keyset() {
 		return KeysetScrollPosition.initial();
 	}
 
@@ -47,7 +47,7 @@ public interface ScrollPosition {
 	 *
 	 * @return will never be {@literal null}.
 	 */
-	public static OffsetScrollPosition offset() {
+	static OffsetScrollPosition offset() {
 		return OffsetScrollPosition.initial();
 	}
 
@@ -57,7 +57,7 @@ public interface ScrollPosition {
 	 * @param offset
 	 * @return a new {@link OffsetScrollPosition} with the given {@code offset}.
 	 */
-	public static OffsetScrollPosition offset(long offset) {
+	static OffsetScrollPosition offset(long offset) {
 		return OffsetScrollPosition.of(offset);
 	}
 
@@ -67,7 +67,7 @@ public interface ScrollPosition {
 	 * @param keys must not be {@literal null}.
 	 * @return will never be {@literal null}.
 	 */
-	public static KeysetScrollPosition forward(Map<String, ?> keys) {
+	static KeysetScrollPosition forward(Map<String, ?> keys) {
 		return of(keys, Direction.FORWARD);
 	}
 
@@ -77,7 +77,7 @@ public interface ScrollPosition {
 	 * @param keys must not be {@literal null}.
 	 * @return will never be {@literal null}.
 	 */
-	public static KeysetScrollPosition backward(Map<String, ?> keys) {
+	static KeysetScrollPosition backward(Map<String, ?> keys) {
 		return of(keys, Direction.BACKWARD);
 	}
 
@@ -88,14 +88,14 @@ public interface ScrollPosition {
 	 * @param direction must not be {@literal null}.
 	 * @return will never be {@literal null}.
 	 */
-	public static KeysetScrollPosition of(Map<String, ?> keys, Direction direction) {
+	static KeysetScrollPosition of(Map<String, ?> keys, Direction direction) {
 		return KeysetScrollPosition.of(keys, direction);
 	}
 
 	/**
 	 * Keyset scrolling direction.
 	 */
-	public enum Direction {
+	enum Direction {
 
 		/**
 		 * Forward (default) direction to scroll from the beginning of the results to their end.

src/main/java/org/springframework/data/domain/WindowImpl.java

@@ -114,6 +114,6 @@ class WindowImpl<T> implements Window<T> {
 
 	@Override
 	public String toString() {
-		return "Scroll " + items;
+		return "Window " + items;
 	}
 }