DATACMNS-867 - Consistent non-capitalization of Querydsl.

src/main/java/org/springframework/data/querydsl/QuerydslPredicateExecutor.java

@@ -28,7 +28,7 @@ import com.querydsl.core.types.Predicate;
  * @author Oliver Gierke
  * @author Thomas Darimont
  */
-public interface QueryDslPredicateExecutor<T> {
+public interface QuerydslPredicateExecutor<T> {
 
 	/**
 	 * Returns a single entity matching the given {@link Predicate} or {@literal null} if none was found.

src/main/java/org/springframework/data/querydsl/QuerydslRepositoryInvokerAdapter.java

@@ -27,7 +27,7 @@ import org.springframework.util.MultiValueMap;
 import com.querydsl.core.types.Predicate;
 
 /**
- * {@link RepositoryInvoker} that is aware of a {@link QueryDslPredicateExecutor} and {@link Predicate} to be executed
+ * {@link RepositoryInvoker} that is aware of a {@link QuerydslPredicateExecutor} and {@link Predicate} to be executed
  * for all flavors of {@code findAll(…)}. All other calls are forwarded to the configured delegate.
  * 
  * @author Oliver Gierke
@@ -35,18 +35,18 @@ import com.querydsl.core.types.Predicate;
 public class QuerydslRepositoryInvokerAdapter implements RepositoryInvoker {
 
 	private final RepositoryInvoker delegate;
-	private final QueryDslPredicateExecutor<Object> executor;
+	private final QuerydslPredicateExecutor<Object> executor;
 	private final Predicate predicate;
 
 	/**
 	 * Creates a new {@link QuerydslRepositoryInvokerAdapter} for the given delegate {@link RepositoryInvoker},
-	 * {@link QueryDslPredicateExecutor} and Querydsl {@link Predicate}.
+	 * {@link QuerydslPredicateExecutor} and Querydsl {@link Predicate}.
 	 * 
 	 * @param delegate must not be {@literal null}.
 	 * @param executor must not be {@literal null}.
 	 * @param predicate can be {@literal null}.
 	 */
-	public QuerydslRepositoryInvokerAdapter(RepositoryInvoker delegate, QueryDslPredicateExecutor<Object> executor,
+	public QuerydslRepositoryInvokerAdapter(RepositoryInvoker delegate, QuerydslPredicateExecutor<Object> executor,
 			Predicate predicate) {
 
 		Assert.notNull(delegate, "Delegate RepositoryInvoker must not be null!");

src/main/java/org/springframework/data/querydsl/QuerydslUtils.java

@@ -29,10 +29,10 @@ import com.querydsl.core.types.PathType;
  * @author Oliver Gierke
  */
 @UtilityClass
-public class QueryDslUtils {
+public class QuerydslUtils {
 
 	public static final boolean QUERY_DSL_PRESENT = org.springframework.util.ClassUtils
-			.isPresent("com.querydsl.core.types.Predicate", QueryDslUtils.class.getClassLoader());
+			.isPresent("com.querydsl.core.types.Predicate", QuerydslUtils.class.getClassLoader());
 
 	/**
 	 * Returns the property path for the given {@link Path}.

src/main/java/org/springframework/data/querydsl/SimpleEntityPathResolver.java

@@ -17,6 +17,7 @@ package org.springframework.data.querydsl;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
+import java.util.Optional;
 
 import org.springframework.util.ClassUtils;
 import org.springframework.util.ReflectionUtils;
@@ -50,14 +51,12 @@ public enum SimpleEntityPathResolver implements EntityPathResolver {
 		String pathClassName = getQueryClassName(domainClass);
 
 		try {
-			Class<?> pathClass = ClassUtils.forName(pathClassName, domainClass.getClassLoader());
-			Field field = getStaticFieldOfType(pathClass);
 
-			if (field == null) {
-				throw new IllegalStateException(String.format(NO_FIELD_FOUND_TEMPLATE, pathClass));
-			} else {
-				return (EntityPath<T>) ReflectionUtils.getField(field, null);
-			}
+			Class<?> pathClass = ClassUtils.forName(pathClassName, domainClass.getClassLoader());
+
+			return getStaticFieldOfType(pathClass)//
+					.map(it -> (EntityPath<T>) ReflectionUtils.getField(it, null))//
+					.orElseThrow(() -> new IllegalStateException(String.format(NO_FIELD_FOUND_TEMPLATE, pathClass)));
 
 		} catch (ClassNotFoundException e) {
 			throw new IllegalArgumentException(String.format(NO_CLASS_FOUND_TEMPLATE, pathClassName, domainClass.getName()),
@@ -71,7 +70,7 @@ public enum SimpleEntityPathResolver implements EntityPathResolver {
 	 * @param type
 	 * @return
 	 */
-	private Field getStaticFieldOfType(Class<?> type) {
+	private Optional<Field> getStaticFieldOfType(Class<?> type) {
 
 		for (Field field : type.getDeclaredFields()) {
 
@@ -79,12 +78,12 @@ public enum SimpleEntityPathResolver implements EntityPathResolver {
 			boolean hasSameType = type.equals(field.getType());
 
 			if (isStatic && hasSameType) {
-				return field;
+				return Optional.of(field);
 			}
 		}
 
 		Class<?> superclass = type.getSuperclass();
-		return Object.class.equals(superclass) ? null : getStaticFieldOfType(superclass);
+		return Object.class.equals(superclass) ? Optional.empty() : getStaticFieldOfType(superclass);
 	}
 
 	/**

src/main/java/org/springframework/data/querydsl/binding/QuerydslPathInformation.java

@@ -23,7 +23,7 @@ import java.beans.PropertyDescriptor;
 
 import org.springframework.beans.BeanUtils;
 import org.springframework.data.querydsl.EntityPathResolver;
-import org.springframework.data.querydsl.QueryDslUtils;
+import org.springframework.data.querydsl.QuerydslUtils;
 
 import com.querydsl.core.types.Path;
 
@@ -82,7 +82,7 @@ class QuerydslPathInformation implements PathInformation {
 	 */
 	@Override
 	public String toDotPath() {
-		return QueryDslUtils.toDotPath(path);
+		return QuerydslUtils.toDotPath(path);
 	}
 
 	/*