Any idea why this is happening?

23:54:10,515 INFO main Environment:509 - Hibernate 3.2.3
23:54:10,515 INFO main Environment:542 - hibernate.properties not found
23:54:10,531 INFO main Environment:676 - Bytecode provider name : cglib
23:54:10,578 INFO main Environment:593 - using JDK 1.4 java.sql.Timestamp handling
23:54:10,796 INFO main HbmBinder:300 - Mapping class: org.springframework.batch.sample.domain.CustomerCr edit -> CUSTOMER
23:54:10,890 INFO main ConnectionProviderFactory:72 - Initializing connection provider: org.springframework.orm.hibernate3.LocalDataSource ConnectionProvider
23:54:11,203 INFO main SettingsFactory:89 - RDBMS: MySQL, version: 5.0.51a-community-nt
23:54:11,218 INFO main SettingsFactory:90 - JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.5 ( Revision: ${svn.Revision} )
23:54:11,234 INFO main Dialect:152 - Using dialect: org.hibernate.dialect.MySQLDialect
23:54:11,234 INFO main TransactionFactoryFactory:31 - Using default transaction strategy (direct JDBC transactions)
23:54:11,234 INFO main TransactionManagerLookupFactory:33 - No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
23:54:11,250 INFO main SettingsFactory:143 - Automatic flush during beforeCompletion(): disabled
23:54:11,250 INFO main SettingsFactory:147 - Automatic session close at end of transaction: disabled
23:54:11,250 INFO main SettingsFactory:154 - JDBC batch size: 15
23:54:11,250 INFO main SettingsFactory:157 - JDBC batch updates for versioned data: disabled
23:54:11,250 INFO main SettingsFactory:162 - Scrollable result sets: enabled
23:54:11,250 INFO main SettingsFactory:170 - JDBC3 getGeneratedKeys(): enabled
23:54:11,250 INFO main SettingsFactory:178 - Connection release mode: on_close
23:54:11,250 INFO main SettingsFactory:202 - Maximum outer join fetch depth: 2
23:54:11,250 INFO main SettingsFactory:205 - Default batch fetch size: 1
23:54:11,250 INFO main SettingsFactory:209 - Generate SQL with comments: disabled
23:54:11,250 INFO main SettingsFactory:213 - Order SQL updates by primary key: disabled
23:54:11,250 INFO main SettingsFactory:382 - Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
23:54:11,265 INFO main ASTQueryTranslatorFactory:24 - Using ASTQueryTranslatorFactory
23:54:11,265 INFO main SettingsFactory:221 - Query language substitutions: {}
23:54:11,265 INFO main SettingsFactory:226 - JPA-QL strict compliance: disabled
23:54:11,265 INFO main SettingsFactory:231 - Second-level cache: enabled
23:54:11,265 INFO main SettingsFactory:235 - Query cache: disabled
23:54:11,265 INFO main SettingsFactory:369 - Cache provider: org.hibernate.cache.NoCacheProvider
23:54:11,265 INFO main SettingsFactory:250 - Optimize cache for minimal puts: disabled
23:54:11,265 INFO main SettingsFactory:259 - Structured second-level cache entries: disabled
23:54:11,265 INFO main SettingsFactory:279 - Echoing all SQL to stdout
23:54:11,281 INFO main SettingsFactory:286 - Statistics: disabled
23:54:11,281 INFO main SettingsFactory:290 - Deleted entity synthetic identifier rollback: disabled
23:54:11,281 INFO main SettingsFactory:305 - Default entity-mode: pojo
23:54:11,281 INFO main SettingsFactory:309 - Named query checking : enabled
23:54:11,312 INFO main SessionFactoryImpl:161 - building session factory
23:54:11,593 INFO main SessionFactoryObjectFactory:82 - Not binding factory to JNDI, no JNDI name configured
23:54:12,562 INFO main SimpleJobLauncher:130 - No TaskExecutor has been set, defaulting to synchronous executor.
23:54:12,703 INFO main SimpleJobLauncher:84 - Job: [SimpleJob: [name=locFixedWidthJob]] launched with the following parameters: [{}{}{}]
23:54:12,843 DEBUG main RepeatTemplate:429 - Starting batch step.
23:54:12,843 DEBUG main RepeatTemplate:196 - Batch operation about to start at count=0
23:54:12,859 DEBUG main RepeatTemplate:429 - Starting batch step.
23:54:12,859 DEBUG main RepeatTemplate:196 - Batch operation about to start at count=0
23:54:12,859 DEBUG main SimpleFlatFileItemReader:143 - Opening flat file for reading: class path resource [data/fixedLengthImportJob/input/LocationBatchInput.txt]
23:54:13,078 INFO main ProcessorLogAdvice:53 - Processed: com.iso.la.batch.domain.HomeAddress@16e334a
23:54:13,078 DEBUG main RepeatTemplate:400 - Batch is complete according to policy and result value.
23:54:13,312 DEBUG main JdbcStepDao:546 - Truncating long message before update of StepExecution: StepExecution: id=1, name=step1, taskCount=1, commitCount=1, rollbackCount=1
23:54:13,312 DEBUG main SimpleFlatFileItemReader:182 - Closing flat file for reading: class path resource [data/fixedLengthImportJob/input/LocationBatchInput.txt]
23:54:13,343 DEBUG main JdbcJobDao:406 - Truncating long message before update of JobExecution: JobExecution: id=1, startTime=Tue Mar 04 23:54:12 EST 2008, endTime=Tue Mar 04 23:54:13 EST 2008, job=[JobInstance: id=1, JobParameters=[{}{}{}], Job=[SimpleJob: [name=locFixedWidthJob]]]
23:54:13,359 INFO main SimpleJobLauncher:90 - Job: [SimpleJob: [name=locFixedWidthJob]] failed with the following parameters: [{}{}{}]
org.springframework.dao.OptimisticLockingFailureEx ception: Attempt to update step execution id=1 with out of date version (1)
at org.springframework.batch.execution.repository.dao .JdbcStepDao.update(JdbcStepDao.java:566)
at org.springframework.batch.execution.repository.Sim pleJobRepository.saveOrUpdate(SimpleJobRepository. java:262)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoi npointUsingReflection(AopUtils.java:301)
at org.springframework.aop.framework.ReflectiveMethod Invocation.invokeJoinpoint(ReflectiveMethodInvocat ion.java:182)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :149)
at org.springframework.transaction.interceptor.Transa ctionInterceptor.invoke(TransactionInterceptor.jav a:106)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :171)
at org.springframework.aop.interceptor.ExposeInvocati onInterceptor.invoke(ExposeInvocationInterceptor.j ava:89)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :171)
at org.springframework.aop.framework.JdkDynamicAopPro xy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy0.saveOrUpdate(Unknown Source)
at org.springframework.batch.execution.step.simple.Si mpleStepExecutor.execute(SimpleStepExecutor.java:2 84)
at org.springframework.batch.execution.step.simple.Ab stractStep.execute(AbstractStep.java:131)
at org.springframework.batch.execution.job.simple.Sim pleJob.execute(SimpleJob.java:82)
at org.springframework.batch.execution.launch.SimpleJ obLauncher$1.run(SimpleJobLauncher.java:85)
at org.springframework.core.task.SyncTaskExecutor.exe cute(SyncTaskExecutor.java:49)
at org.springframework.batch.execution.launch.SimpleJ obLauncher.run(SimpleJobLauncher.java:80)
at org.springframework.batch.execution.bootstrap.supp ort.CommandLineJobRunner.start(CommandLineJobRunne r.java:212)
at org.springframework.batch.execution.bootstrap.supp ort.CommandLineJobRunner.main(CommandLineJobRunner .java:258)
23:54:13,359 ERROR main CommandLineJobRunner:216 - Job Terminated in error:
org.springframework.dao.OptimisticLockingFailureEx ception: Attempt to update step execution id=1 with out of date version (1)
at org.springframework.batch.execution.repository.dao .JdbcStepDao.update(JdbcStepDao.java:566)
at org.springframework.batch.execution.repository.Sim pleJobRepository.saveOrUpdate(SimpleJobRepository. java:262)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoi npointUsingReflection(AopUtils.java:301)
at org.springframework.aop.framework.ReflectiveMethod Invocation.invokeJoinpoint(ReflectiveMethodInvocat ion.java:182)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :149)
at org.springframework.transaction.interceptor.Transa ctionInterceptor.invoke(TransactionInterceptor.jav a:106)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :171)
at org.springframework.aop.interceptor.ExposeInvocati onInterceptor.invoke(ExposeInvocationInterceptor.j ava:89)
at org.springframework.aop.framework.ReflectiveMethod Invocation.proceed(ReflectiveMethodInvocation.java :171)
at org.springframework.aop.framework.JdkDynamicAopPro xy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy0.saveOrUpdate(Unknown Source)
at org.springframework.batch.execution.step.simple.Si mpleStepExecutor.execute(SimpleStepExecutor.java:2 84)
at org.springframework.batch.execution.step.simple.Ab stractStep.execute(AbstractStep.java:131)
at org.springframework.batch.execution.job.simple.Sim pleJob.execute(SimpleJob.java:82)
at org.springframework.batch.execution.launch.SimpleJ obLauncher$1.run(SimpleJobLauncher.java:85)
at org.springframework.core.task.SyncTaskExecutor.exe cute(SyncTaskExecutor.java:49)
at org.springframework.batch.execution.launch.SimpleJ obLauncher.run(SimpleJobLauncher.java:80)
at org.springframework.batch.execution.bootstrap.supp ort.CommandLineJobRunner.start(CommandLineJobRunne r.java:212)
at org.springframework.batch.execution.bootstrap.supp ort.CommandLineJobRunner.main(CommandLineJobRunner .java:258)