DATAJPA-1075 - Polishing.

Formatting and generic types over raw types in Jpa21Utils. Removed superfluous EntityManager.flush() and ….clear() from EntityGraphRepositoryMethodsIntegrationTests. Formatting, spelling.

Original pull request: #192.

src/main/java/org/springframework/data/jpa/repository/query/Jpa21Utils.java

@@ -168,17 +168,22 @@ public class Jpa21Utils {
 			} else if (parent != null && !exists(attributeName, parent.getAttributeNodes())) {
 				parent.addAttributeNodes(attributeName);
 			}
+
 			return;
 		}
 
 		AttributeNode<?> node = findAttributeNode(attributeName, root, parent);
+
 		if (node != null) {
 
 			Subgraph<?> subgraph = getSubgraph(node);
+
 			if (subgraph == null) {
 				subgraph = parent != null ? parent.addSubgraph(attributeName) : root.addSubgraph(attributeName);
 			}
+
 			createGraph(pathComponents, offset + 1, root, subgraph);
+
 			return;
 		}
 
@@ -211,7 +216,7 @@ public class Jpa21Utils {
 	 * @return {@literal null} if not found.
 	 */
 	private static AttributeNode<?> findAttributeNode(String attributeNodeName, EntityGraph<?> entityGraph,
-			Subgraph parent) {
+			Subgraph<?> parent) {
 		return findAttributeNode(attributeNodeName,
 				parent != null ? parent.getAttributeNodes() : entityGraph.getAttributeNodes());
 	}
@@ -246,5 +251,4 @@ public class Jpa21Utils {
 	private static Subgraph<?> getSubgraph(AttributeNode<?> node) {
 		return node.getSubgraphs().isEmpty() ? null : node.getSubgraphs().values().iterator().next();
 	}
-
 }

src/test/java/org/springframework/data/jpa/repository/EntityGraphRepositoryMethodsIntegrationTests.java

@@ -146,9 +146,6 @@ public class EntityGraphRepositoryMethodsIntegrationTests {
 		em.flush();
 		em.clear();
 
-		em.flush();
-		em.clear();
-
 		User user = repository.getOneWithAttributeNamesById(tom.getId());
 
 		assertThat(user, is(notNullValue()));
@@ -232,14 +229,16 @@ public class EntityGraphRepositoryMethodsIntegrationTests {
 		User user = repository.findOneWithDeepGraphById(tom.getId());
 
 		assertThat(user, is(notNullValue()));
-
-		assertThat("colleagues on root should have been fetched by dynamic subgraph declaration",
+		assertThat("Colleagues on root should have been fetched by dynamic subgraph declaration",
 				Persistence.getPersistenceUtil().isLoaded(user, "colleagues"), is(true));
 
 		for (User colleague : user.getColleagues()) {
+
 			assertThat(Persistence.getPersistenceUtil().isLoaded(colleague, "colleagues"), is(true));
 			assertThat(Persistence.getPersistenceUtil().isLoaded(colleague, "roles"), is(true));
+
 			for (User colleagueOfColleague : colleague.getColleagues()) {
+
 				assertThat(Persistence.getPersistenceUtil().isLoaded(colleagueOfColleague, "roles"), is(true));
 				assertThat(Persistence.getPersistenceUtil().isLoaded(colleagueOfColleague, "colleagues"), is(false));
 			}

src/test/java/org/springframework/data/jpa/repository/query/EclipseLinkJpa21UtilsTests.java

@@ -21,6 +21,4 @@ import org.springframework.test.context.ContextConfiguration;
  * @author Christoph Strobl
  */
 @ContextConfiguration("classpath:eclipselink.xml")
-public class EclipseLinkJpa21UtilsTests extends Jpa21UtilsTests {
-
-}
+public class EclipseLinkJpa21UtilsTests extends Jpa21UtilsTests {}