Polish a7092a21e4

spring-batch-core/src/test/java/org/springframework/batch/core/configuration/support/DefaultJobLoaderTests.java

@@ -42,6 +42,7 @@ import org.springframework.test.util.ReflectionTestUtils;
 /**
  * @author Dave Syer
  * @author Stephane Nicoll
+ * @author Mahmoud Ben Hassine
  */
 public class DefaultJobLoaderTests {
 
@@ -266,7 +267,6 @@ public class DefaultJobLoaderTests {
             return Collections.emptyList();
         }
 
-        @Nullable
 		@Override
 		public Step getStep(String stepName) throws NoSuchStepException {
             throw new NoSuchStepException("Step [" + stepName + "] does not exist");

spring-batch-core/src/test/java/org/springframework/batch/core/job/ExtendedAbstractJobTests.java

@@ -42,6 +42,7 @@ import static org.junit.Assert.fail;
 
 /**
  * @author Dave Syer
+ * @author Mahmoud Ben Hassine
  *
  */
 public class ExtendedAbstractJobTests {
@@ -215,7 +216,6 @@ public class ExtendedAbstractJobTests {
 		protected void doExecute(JobExecution execution) throws JobExecutionException {
 		}
 
-		@Nullable
 		@Override
 		public Step getStep(String stepName) {
 			return null;

spring-batch-core/src/test/java/org/springframework/batch/core/job/JobSupport.java

@@ -41,6 +41,7 @@ import org.springframework.util.ClassUtils;
  *
  * @author Lucas Ward
  * @author Dave Syer
+ * @author Mahmoud Ben Hassine
  */
 public class JobSupport implements BeanNameAware, Job, StepLocator {
 
@@ -192,7 +193,6 @@ public class JobSupport implements BeanNameAware, Job, StepLocator {
 		return steps.keySet();
 	}
 
-	@Nullable
 	@Override
 	public Step getStep(String stepName) throws NoSuchStepException {
 		final Step step = steps.get(stepName);

spring-batch-core/src/test/java/org/springframework/batch/core/launch/support/SimpleJobOperatorTests.java

@@ -453,7 +453,6 @@ public class SimpleJobOperatorTests {
 
 		private TaskletStep taskletStep;
 
-		@Nullable
 		@Override
 		public Step getStep(String stepName) {
 			return taskletStep;