diff --git a/spring-batch-docs/asciidoc/common-patterns.adoc b/spring-batch-docs/asciidoc/common-patterns.adoc
index 68d9efa11..2b361817f 100644
--- a/spring-batch-docs/asciidoc/common-patterns.adoc
+++ b/spring-batch-docs/asciidoc/common-patterns.adoc
@@ -443,7 +443,7 @@ public MultiLineTradeItemReader itemReader() {
 
 @Bean
 public FlatFileItemReader flatFileItemReader() {
-	FlatFileItemReader<Trade> reader = new FlatFileItemReaderBuilder<Trade>()
+	FlatFileItemReader<Trade> reader = new FlatFileItemReaderBuilder<>()
 			.name("flatFileItemReader")
 			.resource(new ClassPathResource("data/iosample/input/multiLine.txt"))
 			.lineTokenizer(orderFileTokenizer())
diff --git a/spring-batch-docs/asciidoc/readersAndWriters.adoc b/spring-batch-docs/asciidoc/readersAndWriters.adoc
index c32bba157..f601c3968 100644
--- a/spring-batch-docs/asciidoc/readersAndWriters.adoc
+++ b/spring-batch-docs/asciidoc/readersAndWriters.adoc
@@ -747,10 +747,10 @@ The file can then be read by correctly constructing a `FlatFileItemReader` and c
 
 [source, java]
 ----
-FlatFileItemReader<Player> itemReader = new FlatFileItemReader<Player>();
+FlatFileItemReader<Player> itemReader = new FlatFileItemReader<>();
 itemReader.setResource(new FileSystemResource("resources/players.csv"));
 //DelimitedLineTokenizer defaults to comma as its delimiter
-DefaultLineMapper<Player> lineMapper = new DefaultLineMapper<Player>();
+DefaultLineMapper<Player> lineMapper = new DefaultLineMapper<>();
 lineMapper.setLineTokenizer(new DelimitedLineTokenizer());
 lineMapper.setFieldSetMapper(new PlayerFieldSetMapper());
 itemReader.setLineMapper(lineMapper);
@@ -1261,7 +1261,7 @@ functionality, as shown in the following example:
 
 [source, java]
 ----
-BeanWrapperFieldExtractor<Name> extractor = new BeanWrapperFieldExtractor<Name>();
+BeanWrapperFieldExtractor<Name> extractor = new BeanWrapperFieldExtractor<>();
 extractor.setNames(new String[] { "first", "last", "born" });
 
 String first = "Alan";
@@ -2841,12 +2841,12 @@ requirements of an `ItemReader`, as illustrated in the following test code:
 
 [source, java]
 ----
-List<String> items = new ArrayList<String>();
+List<String> items = new ArrayList<>();
 items.add("1");
 items.add("2");
 items.add("3");
 
-ItemReader itemReader = new CustomItemReader<String>(items);
+ItemReader itemReader = new CustomItemReader<>(items);
 assertEquals("1", itemReader.read());
 assertEquals("2", itemReader.read());
 assertEquals("3", itemReader.read());
@@ -2919,11 +2919,11 @@ ExecutionContext executionContext = new ExecutionContext();
 assertEquals("1", itemReader.read());
 ((ItemStream)itemReader).update(executionContext);
 
-List<String> items = new ArrayList<String>();
+List<String> items = new ArrayList<>();
 items.add("1");
 items.add("2");
 items.add("3");
-itemReader = new CustomItemReader<String>(items);
+itemReader = new CustomItemReader<>(items);
 
 ((ItemStream)itemReader).open(executionContext);
 assertEquals("2", itemReader.read());