Execute OpenRewrite recipes

This executed:

```
mvn -U org.openrewrite.maven:rewrite-maven-plugin:run -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-migrate-java:RELEASE -Drewrite.activeRecipes=org.openrewrite.java.jspecify.MigrateFromSpringFrameworkAnnotations,org.openrewrite.staticanalysis.AnnotateNullableMethods,org.openrewrite.staticanalysis.NullableOnMethodReturnType -Drewrite.exportDatatables=true
```

Signed-off-by: Stefano Cordio <stefano.cordio@gmail.com>

Author: scordio

spring-batch-core/src/main/java/org/springframework/batch/core/SpringBatchVersion.java

@@ -15,7 +15,7 @@
  */
 package org.springframework.batch.core;
 
-import org.springframework.lang.Nullable;
+import org.jspecify.annotations.Nullable;
 
 /**
  * Class that exposes the Spring Batch version. Fetches the "Implementation-Version"
@@ -43,8 +43,7 @@ private SpringBatchVersion() {
 	 * {@code "N/A"} if it cannot be determined.
 	 * @see Package#getImplementationVersion()
 	 */
-	@Nullable
-	public static String getVersion() {
+	public static @Nullable String getVersion() {
 		Package pkg = SpringBatchVersion.class.getPackage();
 		if (pkg != null && pkg.getImplementationVersion() != null) {
 			return pkg.getImplementationVersion();

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/JobLocator.java

@@ -15,9 +15,10 @@
  */
 package org.springframework.batch.core.configuration;
 
+import org.jspecify.annotations.Nullable;
+
 import org.springframework.batch.core.job.Job;
 import org.springframework.batch.core.launch.NoSuchJobException;
-import org.springframework.lang.Nullable;
 
 /**
  * A runtime service locator interface for retrieving job configurations by

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/DefaultJobLoader.java

@@ -23,6 +23,7 @@
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
 
 import org.springframework.batch.core.job.Job;
 import org.springframework.batch.core.step.Step;
@@ -34,7 +35,6 @@
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/GroupAwareJob.java

@@ -15,11 +15,12 @@
  */
 package org.springframework.batch.core.configuration.support;
 
+import org.jspecify.annotations.Nullable;
+
 import org.springframework.batch.core.job.Job;
 import org.springframework.batch.core.job.JobExecution;
 import org.springframework.batch.core.job.parameters.JobParametersIncrementer;
 import org.springframework.batch.core.job.parameters.JobParametersValidator;
-import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
 
 /**
@@ -87,8 +88,7 @@ public boolean isRestartable() {
 	}
 
 	@Override
-	@Nullable
-	public JobParametersIncrementer getJobParametersIncrementer() {
+	public @Nullable JobParametersIncrementer getJobParametersIncrementer() {
 		return delegate.getJobParametersIncrementer();
 	}
 

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/MapJobRegistry.java

@@ -23,6 +23,8 @@
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
+
 import org.springframework.batch.core.job.Job;
 import org.springframework.batch.core.configuration.DuplicateJobException;
 import org.springframework.batch.core.configuration.JobRegistry;
@@ -31,7 +33,6 @@
 import org.springframework.beans.factory.SmartInitializingSingleton;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/MapStepRegistry.java

@@ -22,6 +22,8 @@
 import java.util.concurrent.ConcurrentMap;
 
 import org.springframework.batch.core.step.Step;
+
+import org.jspecify.annotations.Nullable;
 import org.springframework.batch.core.configuration.DuplicateJobException;
 import org.springframework.batch.core.configuration.StepRegistry;
 import org.springframework.batch.core.launch.NoSuchJobException;
@@ -62,7 +64,7 @@ public void unregisterStepsFromJob(String jobName) {
 	}
 
 	@Override
-	public Step getStep(String jobName, String stepName) throws NoSuchJobException {
+	public @Nullable Step getStep(String jobName, String stepName) throws NoSuchJobException {
 		Assert.notNull(jobName, "The job name cannot be null.");
 		Assert.notNull(stepName, "The step name cannot be null.");
 		if (!map.containsKey(jobName)) {

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/ExceptionElementParser.java

@@ -22,11 +22,13 @@
 import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.util.xml.DomUtils;
+
+import org.jspecify.annotations.Nullable;
 import org.w3c.dom.Element;
 
 public class ExceptionElementParser {
 
-	public ManagedMap<TypedStringValue, Boolean> parse(Element element, ParserContext parserContext,
+	public @Nullable ManagedMap<TypedStringValue, Boolean> parse(Element element, ParserContext parserContext,
 			String exceptionListName) {
 		List<Element> children = DomUtils.getChildElementsByTagName(element, exceptionListName);
 		if (children.size() == 1) {

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/JobParser.java

@@ -30,6 +30,8 @@
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.util.StringUtils;
 import org.springframework.util.xml.DomUtils;
+
+import org.jspecify.annotations.Nullable;
 import org.w3c.dom.Element;
 
 /**
@@ -158,7 +160,7 @@ else if (listenersElements.size() > 1) {
 	 * @param parserContext The {@link ParserContext}.
 	 * @return the {@link BeanMetadataElement} extracted from the element parameter.
 	 */
-	public BeanMetadataElement parseBeanElement(Element element, ParserContext parserContext) {
+	public @Nullable BeanMetadataElement parseBeanElement(Element element, ParserContext parserContext) {
 		String refAttribute = element.getAttribute(REF_ATTR);
 		Element beanElement = DomUtils.getChildElementByTagName(element, BEAN_ELE);
 		Element refElement = DomUtils.getChildElementByTagName(element, REF_ELE);

spring-batch-core/src/main/java/org/springframework/batch/core/converter/DefaultJobParametersConverter.java

@@ -20,12 +20,13 @@
 import java.util.Properties;
 
 import org.springframework.batch.core.job.parameters.JobParameter;
+
+import org.jspecify.annotations.NonNull;
+import org.jspecify.annotations.Nullable;
 import org.springframework.batch.core.job.parameters.JobParameters;
 import org.springframework.batch.core.job.parameters.JobParametersBuilder;
 import org.springframework.core.convert.support.ConfigurableConversionService;
 import org.springframework.core.convert.support.DefaultConversionService;
-import org.springframework.lang.NonNull;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 

spring-batch-core/src/main/java/org/springframework/batch/core/converter/JobParametersConverter.java

@@ -21,6 +21,10 @@
 import org.springframework.batch.core.job.parameters.JobParameters;
 import org.springframework.batch.core.job.parameters.JobParametersBuilder;
 import org.springframework.lang.Nullable;
+import org.springframework.batch.core.JobParameters;
+
+import org.jspecify.annotations.Nullable;
+import org.springframework.batch.core.JobParametersBuilder;
 
 /**
  * A factory for {@link JobParameters} instances. A job can be executed with many possible