Polishing.

Fix class visibility.

See #3719.

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/JpaCountQueryCreator.java

@@ -36,7 +36,7 @@
  */
 public class JpaCountQueryCreator extends JpaQueryCreator {
 
-	private boolean distinct;
+	private final boolean distinct;
 
 	/**
 	 * Creates a new {@link JpaCountQueryCreator}.
@@ -56,20 +56,18 @@ public JpaCountQueryCreator(PartTree tree, ReturnedType type, CriteriaBuilder bu
 
 	@Override
 	protected CriteriaQuery<? extends Object> createCriteriaQuery(CriteriaBuilder builder, ReturnedType type) {
-
 		return builder.createQuery(Long.class);
 	}
 
 	@Override
 	@SuppressWarnings("unchecked")
 	protected CriteriaQuery<? extends Object> complete(@Nullable Predicate predicate, Sort sort,
-													   CriteriaQuery<? extends Object> query, CriteriaBuilder builder, Root<?> root) {
+			CriteriaQuery<? extends Object> query, CriteriaBuilder builder, Root<?> root) {
 
 		CriteriaQuery<? extends Object> select = query.select(getCountQuery(builder, root));
 		return predicate == null ? select : select.where(predicate);
 	}
 
-
 	@SuppressWarnings("rawtypes")
 	private Expression getCountQuery(CriteriaBuilder builder, Root<?> root) {
 		return distinct ? builder.countDistinct(root) : builder.count(root);

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/ParameterMetadataProvider.java

@@ -54,7 +54,7 @@
  * @author Donghun Shin
  * @author Greg Turnquist
  */
-class ParameterMetadataProvider {
+public class ParameterMetadataProvider {
 
 	private final CriteriaBuilder builder;
 	private final Iterator<? extends Parameter> parameters;
@@ -191,7 +191,7 @@ EscapeCharacter getEscape() {
 	 * @author Andrey Kovalev
 	 * @param <T>
 	 */
-	static class ParameterMetadata<T> {
+	public static class ParameterMetadata<T> {
 
 		static final Object PLACEHOLDER = new Object();