JavaDoc polishing.

spring-data-commons-core/src/main/java/org/springframework/data/repository/query/parser/AbstractQueryCreator.java

@@ -37,12 +37,12 @@ public abstract class AbstractQueryCreator<T, S> {
 	private final ParameterAccessor parameters;
 	private final PartTree tree;
 
-
 	/**
-	 * Creates a new {@link AbstractQueryCreator} for the given {@link PartTree}
-	 * and {@link ParametersParameterAccessor}.
-	 *
-	 * @param tree
+	 * Creates a new {@link AbstractQueryCreator} for the given {@link PartTree} and {@link ParametersParameterAccessor}.
+	 * The latter is used to hand actual parameter values into the callback methods as well as to apply dynamic sorting
+	 * via a {@link Sort} parameter.
+	 * 
+	 * @param tree must not be {@literal null}.
 	 * @param parameters
 	 */
 	public AbstractQueryCreator(PartTree tree, ParameterAccessor parameters) {

spring-data-commons-core/src/test/java/org/springframework/data/mapping/PersistentEntitySpec.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright (c) 2011 by the original author(s).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.mapping;
 
 import static org.hamcrest.CoreMatchers.*;