Fix javadoc errors and warnings

Resolves #1624

spring-batch-samples/src/main/java/org/springframework/batch/sample/common/StagingItemReader.java

@@ -40,7 +40,7 @@ import org.springframework.util.Assert;
 
 /**
  * Thread-safe database {@link ItemReader} implementing the process indicator pattern.
- *
+ * <p>
  * To achieve restartability use together with {@link StagingItemProcessor}.
  */
 public class StagingItemReader<T>

spring-batch-samples/src/main/java/org/springframework/batch/sample/common/StagingItemWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2022 the original author or authors.
+ * Copyright 2006-2023 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.
@@ -69,7 +69,7 @@ public class StagingItemWriter<T> extends JdbcDaoSupport implements StepExecutio
 	/**
 	 * Serialize the item to the staging table, and add a NEW processed flag.
 	 *
-	 * @see ItemWriter#write(java.util.List)
+	 * @see ItemWriter#write(Chunk)
 	 */
 	@Override
 	public void write(final Chunk<? extends T> chunk) {

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/order/internal/xml/Customer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2007 the original author or authors.
+ * Copyright 2006-2023 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.
@@ -18,7 +18,7 @@ package org.springframework.batch.sample.domain.order.internal.xml;
 
 /**
  * An XML customer.
- *
+ * <p>
  * This is a complex type.
  */
 public class Customer {

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/order/internal/xml/LineItem.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2007 the original author or authors.
+ * Copyright 2006-2023 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.
@@ -18,7 +18,7 @@ package org.springframework.batch.sample.domain.order.internal.xml;
 
 /**
  * An XML line-item.
- *
+ * <p>
  * This is a complex type.
  */
 public class LineItem {

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/order/internal/xml/Order.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2014 the original author or authors.
+ * Copyright 2006-2023 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.
@@ -21,7 +21,7 @@ import java.util.List;
 
 /**
  * An XML order.
- *
+ * <p>
  * This is a complex type.
  */
 public class Order {

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/order/internal/xml/Shipper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2007 the original author or authors.
+ * Copyright 2006-2023 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.
@@ -18,7 +18,7 @@ package org.springframework.batch.sample.domain.order.internal.xml;
 
 /**
  * An XML shipper.
- *
+ * <p>
  * This is a complex type.
  */
 public class Shipper {

spring-batch-samples/src/main/java/org/springframework/batch/sample/mongodb/MongoDBSampleApp.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 the original author or authors.
+ * Copyright 2020-2023 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.
@@ -31,7 +31,7 @@ import org.springframework.data.mongodb.core.MongoTemplate;
 /**
  * Ensure a MongoDB instance is running on "localhost:27017", otherwise modify
  * mongodb-sample.properties file as needed.
- *
+ * <p>
  * If you use docker, you can run a mongo db server with: "docker run --name mongodb --rm
  * -d -p 27017:27017 mongo"
  *

spring-batch-samples/src/test/java/org/springframework/batch/sample/RestartFunctionalTests.java

@@ -61,12 +61,11 @@ class RestartFunctionalTests {
 		JdbcTestUtils.deleteFromTables(jdbcTemplate, "TRADE");
 	}
 
-	/**
+	/*
 	 * Job fails on first run, because the module throws exception after processing more
 	 * than half of the input. On the second run, the job should finish successfully,
 	 * because it continues execution where the previous run stopped (module throws
 	 * exception after fixed number of processed records).
-	 * @throws Exception
 	 */
 	@Test
 	void testLaunchJob() throws Exception {

spring-batch-samples/src/test/java/org/springframework/batch/sample/common/ErrorLogTasklet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2021 the original author or authors.
+ * Copyright 2008-2023 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.
@@ -55,7 +55,7 @@ public class ErrorLogTasklet implements Tasklet, StepExecutionListener {
 	}
 
 	/**
-	 * @return
+	 * @return the skip count
 	 */
 	private long getSkipCount() {
 		if (stepExecution == null || stepName == null) {