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Spring Batch 5.0 Migration Guide

Mahmoud Ben Hassine edited this page May 16, 2023 · 55 revisions

This document is meant to help you migrate your application to Spring Batch 5.0.

Major changes

JDK 17 baseline

Spring Batch 5 is based on Spring Framework 6 which requires Java 17 as a minimum version. Therefore, you need to use Java 17+ to run Spring Batch 5 applications.

Dependencies upgrade

Spring Batch 5 is updating its Spring dependencies across the board to the following versions:

  • Spring Framework 6
  • Spring Integration 6
  • Spring Data 3
  • Spring AMQP 3
  • Spring for Apache Kafka 3
  • Micrometer 1.10

Moreover, this version marks the migration to:

  • Jakarta EE 9: Please make sure to update your import statements from javax.* to jakarta.* for all EE APIs you use.
  • Hibernate 6: Hibernate (cursor/paging) item readers and writer have been updated to use Hibernate 6.1 APIs (previously using Hibernate 5.6 APIs)

In addition to that:

  • org.springframework:spring-jdbc is now a required dependency in spring-batch-core
  • junit:junit is no more a required dependency in spring-batch-test.
  • com.fasterxml.jackson.core:jackson-core is now optional in spring-batch-core

Database schema updates

Oracle

In this version, Oracle sequences are now ordered. The sequences creation script has been updated for new applications. Existing applications can use the migration script in org/springframework/batch/core/migration/5.0/migration-oracle.sql to alter the existing sequences.

Moreover, the DDL scripts for Oracle have been renamed as follows:

  • org/springframework/batch/core/schema-drop-oracle10g.sql has been renamed to org/springframework/batch/core/schema-drop-oracle.sql
  • org/springframework/batch/core/schema-oracle10g.sql has been renamed to org/springframework/batch/core/schema-oracle.sql

MS SQLServer

Up until v4, the DDL script for MS SQLServer used tables to emulate sequences. In this version, this usage has been updated with real sequences:

CREATE SEQUENCE BATCH_STEP_EXECUTION_SEQ START WITH 0 MINVALUE 0 MAXVALUE 9223372036854775807 NO CACHE NO CYCLE;
CREATE SEQUENCE BATCH_JOB_EXECUTION_SEQ START WITH 0 MINVALUE 0 MAXVALUE 9223372036854775807 NO CACHE NO CYCLE;
CREATE SEQUENCE BATCH_JOB_SEQ START WITH 0 MINVALUE 0 MAXVALUE 9223372036854775807 NO CACHE NO CYCLE;

New applications can use the provided script with no modifications. Existing applications should consider modifying the snippet above to start sequences from the last value in sequence tables used with v4.

All platforms

Removal of BATCH_JOB_EXECUTION#JOB_CONFIGURATION_LOCATION column

The column JOB_CONFIGURATION_LOCATION in the BATCH_JOB_EXECUTION table is not used anymore and can be marked as unused or dropped if needed:

ALTER TABLE BATCH_JOB_EXECUTION DROP COLUMN JOB_CONFIGURATION_LOCATION;

The syntax to drop the column might differ depending on the version of your database server, so please check the syntax of column deletion. This change might require a table reorganisation on some platforms.

❗ Important note ❗ This change is mainly related to the removal of the JSR-352 implementation which was the only part of the framework using this column. As a consequence, the field JobExecution#jobConfigurationName has been removed as well as all APIs using it (constructors and getter in the domain object JobExecution, method JobRepository#createJobExecution(JobInstance, JobParameters, String); in JobRepository).

Column change in BATCH_JOB_EXECUTION_PARAMS

The BATCH_JOB_EXECUTION_PARAMS has been updated as follows:

CREATE TABLE BATCH_JOB_EXECUTION_PARAMS  (
	JOB_EXECUTION_ID BIGINT NOT NULL ,
---	TYPE_CD VARCHAR(6) NOT NULL ,
---	KEY_NAME VARCHAR(100) NOT NULL ,
---	STRING_VAL VARCHAR(250) ,
---	DATE_VAL DATETIME(6) DEFAULT NULL ,
---	LONG_VAL BIGINT ,
---	DOUBLE_VAL DOUBLE PRECISION ,
+++	PARAMETER_NAME VARCHAR(100) NOT NULL ,
+++	PARAMETER_TYPE VARCHAR(100) NOT NULL ,
+++	PARAMETER_VALUE VARCHAR(2500) ,
	IDENTIFYING CHAR(1) NOT NULL ,
	constraint JOB_EXEC_PARAMS_FK foreign key (JOB_EXECUTION_ID)
	references BATCH_JOB_EXECUTION(JOB_EXECUTION_ID)
);

This is related to the way job parameters are persisted as revisited in https://github.com/spring-projects/spring-batch/issues/3960. Migration scripts can be found in org/springframework/batch/core/migration/5.0.

Column change in BATCH_STEP_EXECUTION

A new column CREATE_TIME was added in v5. You should create it in the table according to your database server, something like:

ALTER TABLE BATCH_STEP_EXECUTION ADD CREATE_TIME TIMESTAMP NOT NULL DEFAULT '1970-01-01 00:00:00';

Moreover, the NOT NULL constraint was dropped from the START_TIME column:

ALTER TABLE BATCH_STEP_EXECUTION ALTER COLUMN START_TIME DROP NOT NULL;

Infrastructure beans configuration with @EnableBatchProcessing

Job repository/explorer configuration updates

The Map-based job repository/explorer implementation were deprecated in v4 and completely removed in v5. You should use the Jdbc-based implementation instead. Unless you are using a custom Job repository/explorer implementation, the @EnableBatchProcessing annotation will configure a Jdbc-based JobRepository which requires a DataSource bean in the application context. The DataSource bean could refer to an embedded database like H2, HSQL, etc to work with an in-memory job repository.

Transaction manager bean exposure/configuration

Up until version 4.3, the @EnableBatchProcessing annotation exposed a tranasaction manager bean in the application context. While this was convenient in many cases, the unconditional exposure of a tranasaction manager could interfere with a user-defined transaction manager. In this release, @EnableBatchProcessing does not expose a transaction manager bean in the application context anymore. This change is related to issue https://github.com/spring-projects/spring-batch/issues/816.

As a result of the aforementioned issue, and in combination with the inconsistency between the XML and Java config styles regarding the transaction manager that was fixed in https://github.com/spring-projects/spring-batch/issues/4130, it is now required to manually configure the transaction manager on any tasklet step definition. The method StepBuilderHelper#transactionManager(PlatformTransactionManager) was moved down a level, to AbstractTaskletStepBuilder.

The typical migration path from v4 to v5 in that regard is as follows:

// Sample with v4
@Configuration
@EnableBatchProcessing
public class MyStepConfig {

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Bean
    public Step myStep() {
        return this.stepBuilderFactory.get("myStep")
                .tasklet(..) // or .chunk()
                .build();
    }

}
// Sample with v5
@Configuration
@EnableBatchProcessing
public class MyStepConfig {

    @Bean
    public Tasklet myTasklet() {
       return new MyTasklet();
    }

    @Bean
    public Step myStep(JobRepository jobRepository, Tasklet myTasklet, PlatformTransactionManager transactionManager) {
        return new StepBuilder("myStep", jobRepository)
                .tasklet(myTasklet, transactionManager) // or .chunk(chunkSize, transactionManager)
                .build();
    }

}

This is only required for tasklet steps, other step types do not require a transaction manager by design.

Moreover, the transaction manager was configurable by implementing BatchConfigurer#getTransactionManager. The transaction manager being an implementation detail of the JobRepository, it should not be configurable at the same level as the JobRepository (ie in the same interface). In this release, the BatchConfigurer interface was removed. If needed, a custom transaction manager could be supplied either declaratively as an attribute of @EnableBatchProcessing, or programmatically by overriding DefaultBatchConfiguration#getTransactionManager(). For more details about this change, please check https://github.com/spring-projects/spring-batch/issues/3942.

JobBuilderFactory and StepBuilderFactory bean exposure/configuration

JobBuilderFactory and StepBuilderFactory are not exposed as beans in the application context anymore, and are now deprecated for removal in v5.2 in favor of using the respective builders they create.

The typical migration path from v4 to v5 in that regard is as follows:

// Sample with v4
@Configuration
@EnableBatchProcessing
public class MyJobConfig {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Bean
    public Job myJob(Step step) {
        return this.jobBuilderFactory.get("myJob")
                .start(step)
                .build();
    }

}
// Sample with v5
@Configuration
@EnableBatchProcessing
public class MyJobConfig {

    @Bean
    public Job myJob(JobRepository jobRepository, Step step) {
        return new JobBuilder("myJob", jobRepository)
                .start(step)
                .build();
    }

}

The same pattern can be used to remove the usage of the deprecated StepBuilderFactory. For more details about this change, please check https://github.com/spring-projects/spring-batch/issues/4188.

Data types updates

  • Metric counters (readCount, writeCount, etc) in org.springframework.batch.core.StepExecution and org.springframework.batch.core.StepContribution have been changed from int to long. All getters and setters have been updated accordingly.
  • The skipCount parameter in org.springframework.batch.core.step.skip.SkipPolicy#shouldSkip has been changed from int to long. This is related to the previous point.
  • The type of fields startTime, endTime, createTime and lastUpdated in JobExecution and StepExecution was changed from java.util.Date to java.time.LocalDateTime.

Observability updates

  • Micrometer has been updated to version 1.10
  • All tags are now prefixed with the meter name. For example, the tags of the timer spring.batch.job are named name and status in version 4.x. In version 5, those tags are now named spring.batch.job.name and spring.batch.job.status respectively.
  • The BatchMetrics class (which is intended for internal use only) has been moved from org.springframework.batch.core.metrics to the org.springframework.batch.core.observability package.

Execution context serialization updates

Starting from v5, the default ExecutionContextSerializer was changed from JacksonExecutionContextStringSerializer to DefaultExecutionContextSerializer. The default execution context serializer was updated to serialize/deserialize the context to/from Base64.

The dependency to Jackson was made optional. In order to use the JacksonExecutionContextStringSerializer, jackson-core should be added to the classpath.

SystemCommandTasklet updates

The SystemCommandTasklet has been revisited in this release and was changed as follows:

  • A new strategy interface named CommandRunner was introduced in order to decouple the command execution from the tasklet execution. The default implementation is the JvmCommandRunner which uses the java.lang.Runtime#exec API to run system commands. This interface can be implemented to use any other API to run system commands.

  • The method that runs the command now accepts an array of Strings representing the command and its arguments. There is no need anymore to tokenize the command or do any pre-processing. This change makes the API more intuitive, and less prone to errors.

Job parameters handling updates

Support for any type as a job parameter

This change adds support to use any type as a job parameter, and not only the 4 pre-defined types (long, double, string, date) as in v4. The main change in the following:

---public class JobParameter implements Serializable {
+++public class JobParameter<T> implements Serializable {

---   private Object parameter;
+++   private T value;

---   private ParameterType parameterType;
+++   private Class<T> type;

}

With this revision, the JobParameter can be of any type. This change required many API changes like changing the return type of getType(), or the removal of the ParameterType enum. All changes related to this update can be found in the "[Deprecated|Moved|Removed] APIs" sections.

This change had an impact on how job parameters are persisted in the database (There are no more 4 distinct columns for each predefined type). Please check Column change in BATCH_JOB_EXECUTION_PARAMS for DDL changes. The fully qualified name of the type of the parameter is now persisted as a String, as well as the parameter value. String literals are converted to the parameter type with the standard Spring conversion service. The standard conversion service can be enriched with any required converter to convert user specific types to and from String literals.

Default job parameter conversion

The default notation of job parameters in v4 was specified as follows:

[+|-]parameterName(parameterType)=value

where parameterType is one of [string,long,double,date]. In addition to be limited and constraining, this notation caused several issues as described in https://github.com/spring-projects/spring-batch/issues/3960.

In v5, there are two way to specify job parameters:

Default notation

The default notation is specified as follows:

parameterName=parameterValue,parameterType,identificationFlag

where parameterType is the fully qualified name of the type of the parameter. Spring Batch provides the DefaultJobParametersConverter to support this notation.

Extended notation

While the default notation is well suited for the majority of use cases, it might be inconvenient when the value contains a comma for example. In this case, the extended notation can be used, which is inspired by Spring Boot's Json Application Properties and specified as follows:

parameterName='{"value": "parameterValue", "type":"parameterType", "identifying": "booleanValue"}'

where parameterType is the fully qualified name of the type of the parameter. Spring Batch provides the JsonJobParametersConverter to support this notation.

Historical data access implications

Due to this breaking change about handling job parameters, some APIs that are designed to explore batch meta-data should not be used for job instances that were launched with v4. For example:

  • JobExplorer#getJobInstances could retrieve a mix of historical data between v4 and v5 and might fails at loading job parameters of v4 (#4352). In this particular case, make sure to start at the index of the first instance executed with v5.
  • JobExplorer#getJobExecution could fail at retrieving job parameters if the passed job execution ID is one of an execution that was run with v4.

Another case where this change has implications on loading job parameters is when restarting failed job instances. It is expected that all failed v4 job instances are either restarted to success or abandoned before the migration to v5 is done.

Deprecated APIs

The following APIs have been deprecated in version 5.0:

  • org.springframework.batch.core.listener.ChunkListenerSupport
  • org.springframework.batch.core.listener.StepExecutionListenerSupport
  • org.springframework.batch.repeat.listener.RepeatListenerSupport
  • org.springframework.batch.core.listener.JobExecutionListenerSupport
  • org.springframework.batch.core.listener.SkipListenerSupport
  • org.springframework.batch.item.data.Neo4jItemReader
  • org.springframework.batch.item.data.builder.Neo4jItemWriterBuilder
  • org.springframework.batch.item.data.Neo4jItemWriter
  • org.springframework.batch.item.data.builder.Neo4jItemWriterBuilder
  • org.springframework.batch.item.database.support.SqlPagingQueryUtils#generateLimitGroupedSqlQuery(org.springframework.batch.item.database.support.AbstractSqlPagingQueryProvider, boolean, java.lang.String)
  • org.springframework.batch.core.repository.dao.JdbcJobInstanceDao#setJobIncrementer(DataFieldMaxValueIncrementer jobIncrementer)
  • org.springframework.batch.core.launch.support.SimpleJobLauncher
  • org.springframework.batch.core.configuration.annotation.JobBuilderFactory
  • org.springframework.batch.core.configuration.annotation.StepBuilderFactory
  • The constructor org.springframework.batch.core.job.builder.JobBuilder#JobBuilder(java.lang.String)
  • The constructor org.springframework.batch.core.step.builder.StepBuilder#StepBuilder(java.lang.String)
  • The method org.springframework.batch.core.step.builder.StepBuilder#tasklet(org.springframework.batch.core.step.tasklet.Tasklet)
  • The method org.springframework.batch.core.step.builder.StepBuilder#chunk(int)
  • The method org.springframework.batch.core.step.builder.StepBuilder#chunk(org.springframework.batch.repeat.CompletionPolicy)
  • The method org.springframework.batch.core.step.builder.TaskletStepBuilder#tasklet(org.springframework.batch.core.step.tasklet.Tasklet)
  • The constructor org.springframework.batch.integration.chunk.RemoteChunkingManagerStepBuilder#RemoteChunkingManagerStepBuilder(java.lang.String)
  • The constructor org.springframework.batch.integration.partition.RemotePartitioningManagerStepBuilder#RemotePartitioningManagerStepBuilder(java.lang.String)
  • The constructor org.springframework.batch.integration.partition.RemotePartitioningWorkerStepBuilder#RemotePartitioningWorkerStepBuilder(java.lang.String)
  • The method org.springframework.batch.integration.partition.RemotePartitioningWorkerStepBuilder#tasklet(org.springframework.batch.core.step.tasklet.Tasklet)
  • The method org.springframework.batch.integration.partition.RemotePartitioningWorkerStepBuilder#chunk(int)
  • The method org.springframework.batch.integration.partition.RemotePartitioningWorkerStepBuilder#chunk(org.springframework.batch.repeat.CompletionPolicy)
  • The method org.springframework.batch.core.JobParameters#toProperties
  • The method org.springframework.batch.core.JobParametersBuilder#addParameter
  • The class org.springframework.batch.core.launch.support.JobRegistryBackgroundJobRunner
  • The class org.springframework.batch.test.DataSourceInitializer
  • The class org.springframework.batch.integration.step.DelegateStep
  • The annotation org.springframework.batch.support.annotation.Classifier
  • The class org.springframework.batch.item.ItemStreamSupport
  • The method org.springframework.batch.core.step.builder.AbstractTaskletStepBuilder#throttleLimit
  • The method org.springframework.batch.repeat.support.TaskExecutorRepeatTemplate#setThrottleLimit
  • The interface org.springframework.batch.repeat.support.ResultHolder
  • The interface org.springframework.batch.repeat.support.ResultQueue
  • The class org.springframework.batch.repeat.support.ResultHolderResultQueue
  • The class org.springframework.batch.repeat.support.ThrottleLimitResultQueue

Please refer to the Javadoc of each API for more details about the suggested replacement.

Moved APIs

  • The BatchMetrics class (which is intended for internal use only) has been moved from org.springframework.batch.core.metrics to the org.springframework.batch.core.observability package.
  • The Chunk class was moved from the org.springframework.batch.core.step.item package (spring-batch-core module) to the org.springframework.batch.item package (spring-batch-infrastrucutre module)
  • The ScopeConfiguration class has moved from org.springframework.batch.core.configuration.annotation to org.springframework.batch.core.configuration.support

Removed APIs

The following APIs were deprecated in previous versions and have been removed in this release:

  • Class org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean
  • Class org.springframework.batch.core.repository.dao.MapExecutionContextDao
  • Class org.springframework.batch.core.repository.dao.MapJobExecutionDao
  • Class org.springframework.batch.core.repository.dao.MapJobInstanceDao
  • Class org.springframework.batch.core.repository.dao.MapStepExecutionDao
  • Class org.springframework.batch.core.explore.support.MapJobExplorerFactoryBean
  • Class org.springframework.batch.core.repository.dao.XStreamExecutionContextStringSerializer
  • Class org.springframework.batch.core.configuration.support.ClassPathXmlJobRegistry
  • Class org.springframework.batch.core.configuration.support.ClassPathXmlApplicationContextFactory
  • Class org.springframework.batch.core.launch.support.ScheduledJobParametersFactory
  • Class org.springframework.batch.item.data.AbstractNeo4jItemReader
  • Class org.springframework.batch.item.database.support.ListPreparedStatementSetter
  • Class org.springframework.batch.integration.chunk.RemoteChunkingMasterStepBuilder
  • Class org.springframework.batch.integration.chunk.RemoteChunkingMasterStepBuilderFactory
  • Class org.springframework.batch.integration.partition.RemotePartitioningMasterStepBuilder
  • Class org.springframework.batch.integration.partition.RemotePartitioningMasterStepBuilderFactory
  • Class org.springframework.batch.test.AbstractJobTests
  • Class org.springframework.batch.item.xml.StaxUtils
  • Enum org.springframework.batch.item.file.transform.Alignment
  • Enum org.springframework.batch.core.JobParameter#ParameterType
  • Method org.springframework.batch.core.JobExecution#stop()
  • Method org.springframework.batch.core.JobParameters#getDouble(String key, double defaultValue)
  • Method org.springframework.batch.core.JobParameters#getLong(String key, long defaultValue)
  • Method org.springframework.batch.core.partition.support.SimpleStepExecutionSplitter(JobRepository jobRepository, Step step, Partitioner partitioner)
  • Method org.springframework.batch.core.partition.support.SimpleStepExecutionSplitter#getStartable(StepExecution stepExecution, ExecutionContext context)
  • Method org.springframework.batch.core.repository.support.AbstractJobRepositoryFactoryBean#getJobRepository()
  • Method org.springframework.batch.item.database.AbstractCursorItemReader#cleanupOnClose()
  • Method org.springframework.batch.item.database.HibernateItemWriter#doWrite(HibernateOperations hibernateTemplate, List<? extends T> items)
  • Method org.springframework.batch.item.database.JdbcCursorItemReader#cleanupOnClose()
  • Method org.springframework.batch.item.database.StoredProcedureItemReader#cleanupOnClose()
  • Method org.springframework.batch.item.database.builder.HibernatePagingItemReaderBuilder#useSatelessSession(boolean useStatelessSession)
  • Method org.springframework.batch.item.file.MultiResourceItemReader#getCurrentResource()
  • Method org.springframework.batch.integration.config.annotation.BatchIntegrationConfiguration#remoteChunkingMasterStepBuilderFactory()
  • Method org.springframework.batch.integration.config.annotation.BatchIntegrationConfiguration#remotePartitioningMasterStepBuilderFactory()
  • Method org.springframework.batch.item.util.FileUtils#setUpOutputFile(File file, boolean restarted, boolean overwriteOutputFile)

Moreover, the following APIs have been removed/updated without deprecation:

  • The interface org.springframework.batch.core.configuration.annotation.BatchConfigurer was removed. See https://github.com/spring-projects/spring-batch/issues/3942
  • The class org.springframework.batch.core.configuration.annotation.DefaultBatchConfigurer was removed. See https://github.com/spring-projects/spring-batch/issues/3942
  • The method org.springframework.batch.core.step.builder.SimpleStepBuilder#processor(Function) has been removed to allow lambdas to be passed as item processors. See https://github.com/spring-projects/spring-batch/issues/4061 for more details about the rationale behind this removal. If you use an actual Function as argument for SimpleStepBuilder::processor, then you can change that to .processor(function::apply) to migrate to v5.
  • org.springframework.batch.item.file.builder.FlatFileItemWriterBuilder#resource, org.springframework.batch.item.file.ResourceAwareItemWriterItemStream#setResource, org.springframework.batch.item.json.builder.JsonFileItemWriterBuilder#resource, org.springframework.batch.item.json.JsonFileItemWriter#JsonFileItemWriter, org.springframework.batch.item.support.AbstractFileItemWriter#setResource, org.springframework.batch.item.xml.builder.StaxEventItemWriterBuilder#resource and org.springframework.batch.item.xml.StaxEventItemWriter#setResource have been updated to accept a org.springframework.core.io.WritableResource instead of a org.springframework.core.io.Resource. For more details about this change, please check https://github.com/spring-projects/spring-batch/issues/756
  • The static type org.springframework.batch.item.data.builder.RepositoryItemReaderBuilder.RepositoryMethodReference along with the method org.springframework.batch.item.data.builder.RepositoryItemReaderBuilder#repository(RepositoryMethodReference<?>) have been removed.
  • The signature of the method ItemWriter#write(List) was changed to ItemWriter#write(Chunk)
  • All implementations of ItemWriter were updated to use the Chunk API instead of List
  • All methods in the ItemWriteListener interface were updated to use the Chunk API instead of List
  • All implementations of ItemWriteListener were updated to use the Chunk API instead of List
  • The constructor of ChunkRequest was changed to accept a Chunk instead of a Collection of items
  • The return type of ChunkRequest#getItems() was changed from List to Chunk
  • The JobRepositoryTestUtils was changed to work against the JobRepository interface without depending on a datasource bean. For this change, the constructor that takes a DataSource as a parameter (JobRepositoryTestUtils(JobRepository jobRepository, DataSource dataSource)) as well as the public DataSource setter were removed. This is related to issue #4070.
  • The method StepBuilderHelper#transactionManager(PlatformTransactionManager) was moved to AbstractTaskletStepBuilder. This is related to issue https://github.com/spring-projects/spring-batch/issues/4130.
  • The methods RemotePartitioningManagerStepBuilder#transactionManager(PlatformTransactionManager) and RemotePartitioningWorkerStepBuilder#transactionManager(PlatformTransactionManager) were removed. A transaction manager is not required for those type of steps. This is related to issue https://github.com/spring-projects/spring-batch/issues/4130.
  • The method JobParameter#getType now returns T instead of Object
  • The constructors in JobParameter that took the 4 pre-defined job parameter types (date, string, long, double) where removed.
  • The constructor SkipWrapper(Throwable e) was removed
  • The setter setIsolationLevelForCreate(Isolation) in AbstractJobRepositoryFactoryBean was renamed to setIsolationLevelForCreateEnum
  • The return type of JobExplorer#getJobInstanceCount and JobInstanceDao#getJobInstanceCount has been changed from int to long
  • The return type of JobRepository#getStepExecutionCount and StepExecutionDao#countStepExecutions has been changed from int to long

Pruning

SQLFire support removal

SqlFire has been announced to be EOL as of November 1st, 2014. The support of SQLFire as a job repository was deprecated in version 4.3 and removed in version 5.0.

JSR-352 implementation removal

Due to a lack of adoption, the implementation of the JSR-352 has been discontinued in this release.

Gemfire support removal

Based on the decision to discontinue the support of Spring Data for Apache Geode, the support for Geode in Spring Batch was removed. The code was moved to the spring-batch-extensions repository as a community-driven effort.