fix build warnings

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/data/builder/RepositoryItemReaderBuilder.java

@@ -53,7 +53,7 @@ public class RepositoryItemReaderBuilder<T> {
 
 	private String methodName;
 
-	private RepositoryMethodReference repositoryMethodReference;
+	private RepositoryMethodReference<?> repositoryMethodReference;
 
 	private boolean saveState = true;
 
@@ -213,7 +213,7 @@ public class RepositoryItemReaderBuilder<T> {
 	 * @see RepositoryItemReader#setRepository(PagingAndSortingRepository)
 	 *
 	 */
-	public RepositoryItemReaderBuilder<T> repository(RepositoryMethodReference repositoryMethodReference) {
+	public RepositoryItemReaderBuilder<T> repository(RepositoryMethodReference<?> repositoryMethodReference) {
 		this.repositoryMethodReference = repositoryMethodReference;
 
 		return this;
@@ -275,6 +275,7 @@ public class RepositoryItemReaderBuilder<T> {
 		 * information about the method.
 		 * @return T is a proxy of the object passed in in the constructor
 		 */
+		@SuppressWarnings("unchecked")
 		public T methodIs() {
 			Enhancer enhancer = new Enhancer();
 			enhancer.setSuperclass(this.repository.getClass());

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/data/builder/RepositoryItemWriterBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 the original author or authors.
+ * Copyright 2017-2018 the original author or authors.
  *
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -18,9 +18,6 @@ package org.springframework.batch.item.data.builder;
 
 
 import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
 
 import org.springframework.batch.item.data.RepositoryItemWriter;
 import org.springframework.cglib.proxy.Enhancer;
@@ -33,6 +30,7 @@ import org.springframework.util.Assert;
  * A builder implementation for the {@link RepositoryItemWriter}.
  *
  * @author Glenn Renfro
+ * @author Mahmoud Ben Hassine
  * @since 4.0
  * @see RepositoryItemWriter
  */
@@ -136,6 +134,7 @@ public class RepositoryItemWriterBuilder<T> {
 		 * information about the method.
 		 * @return T is a proxy of the object passed in in the constructor
 		 */
+		@SuppressWarnings("unchecked")
 		public T methodIs() {
 			Enhancer enhancer = new Enhancer();
 			enhancer.setSuperclass(this.repository.getClass());

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/database/HibernateItemReaderHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2013 the original author or authors.
+ * Copyright 2006-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,9 +38,10 @@ import org.springframework.util.StringUtils;
  * queries.
  *
  * @author Dave Syer
+ * @author Mahmoud Ben Hassine
  *
  */
-@SuppressWarnings("rawtype")
+@SuppressWarnings("rawtypes")
 public class HibernateItemReaderHelper<T> implements InitializingBean {
 
 	private SessionFactory sessionFactory;

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/database/builder/HibernateCursorItemReaderBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 the original author or authors.
+ * Copyright 2017-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,6 +37,7 @@ import org.springframework.util.StringUtils;
  *
  * @author Michael Minella
  * @author Glenn Renfro
+ * @author Mahmoud Ben Hassine
  * @since 4.0
  * @see HibernateCursorItemReader
  */
@@ -58,7 +59,7 @@ public class HibernateCursorItemReaderBuilder<T> {
 
 	private String nativeQuery;
 
-	private Class nativeClass;
+	private Class<T> nativeClass;
 
 	private boolean saveState = true;
 
@@ -232,7 +233,7 @@ public class HibernateCursorItemReaderBuilder<T> {
 		return this;
 	}
 
-	public HibernateCursorItemReaderBuilder<T> entityClass(Class nativeClass) {
+	public HibernateCursorItemReaderBuilder<T> entityClass(Class<T> nativeClass) {
 		this.nativeClass = nativeClass;
 
 		return this;
@@ -267,7 +268,7 @@ public class HibernateCursorItemReaderBuilder<T> {
 			reader.setQueryString(this.queryString);
 		}
 		else if(StringUtils.hasText(this.nativeQuery) && this.nativeClass != null) {
-			HibernateNativeQueryProvider provider = new HibernateNativeQueryProvider();
+			HibernateNativeQueryProvider<T> provider = new HibernateNativeQueryProvider<>();
 			provider.setSqlQuery(this.nativeQuery);
 			provider.setEntityClass(this.nativeClass);
 

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/database/builder/HibernatePagingItemReaderBuilder.java

@@ -183,7 +183,7 @@ public class HibernatePagingItemReaderBuilder<T> {
 	 * @return this instance for method chaining
 	 * @see HibernatePagingItemReader#setQueryProvider(HibernateQueryProvider)
 	 */
-	public HibernatePagingItemReaderBuilder<T> queryProvider(HibernateQueryProvider queryProvider) {
+	public HibernatePagingItemReaderBuilder<T> queryProvider(HibernateQueryProvider<T> queryProvider) {
 		this.queryProvider = queryProvider;
 
 		return this;

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/support/AbstractFileItemWriter.java

@@ -412,6 +412,8 @@ public abstract class AbstractFileItemWriter<T> extends AbstractItemStreamItemWr
 		/**
 		 * Return the byte offset position of the cursor in the output file as a
 		 * long integer.
+		 * @return the byte offset position of the cursor in the output file
+		 * @throws IOException If unable to get the offset position
 		 */
 		public long position() throws IOException {
 			long pos = 0;
@@ -519,7 +521,7 @@ public abstract class AbstractFileItemWriter<T> extends AbstractItemStreamItemWr
 
 		/**
 		 * @param line String to be written to the file
-		 * @throws IOException
+		 * @throws IOException If unable to write the String to the file
 		 */
 		public void write(String line) throws IOException {
 			if (!initialized) {