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org.springframework.batch.item.ReaderNotOpenException: Reader must be open before it can be read.	at org.springframework.batch.item.database.AbstractCursorItemReader.doRead(AbstractCursorItemReader.java:443)	at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.read(AbstractItemCountingItemStreamItemReader.java:88)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)	at com.sun.proxy.$Proxy58.read(Unknown Source)	at org.springframework.batch.core.step.item.SimpleChunkProvider.doRead(SimpleChunkProvider.java:91)	at org.springframework.batch.core.step.item.SimpleChunkProvider.read(SimpleChunkProvider.java:157)	at org.springframework.batch.core.step.item.SimpleChunkProvider$1.doInIteration(SimpleChunkProvider.java:116)	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:374)	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)	at org.springframework.batch.core.step.item.SimpleChunkProvider.provide(SimpleChunkProvider.java:110)	at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:69)	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:406)	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:330)	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)	at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:271)	at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:81)	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:374)	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)	at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:257)	at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:200)	at org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call(TaskExecutorPartitionHandler.java:139)	at org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call(TaskExecutorPartitionHandler.java:136)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.lang.Thread.run(Thread.java:745)