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java.lang.OutOfMemoryError: Java heap space at org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:3098) at org.apache.catalina.loader.WebappClassLoader.findResource(WebappClassLoader.java:1244) at org.apache.catalina.loader.WebappClassLoader.getResource(WebappClassLoader.java:1407) at org.springframework.core.io.ClassPathResource.exists(ClassPathResource.java:139) at org.springframework.batch.item.file.FlatFileItemReader.doOpen(FlatFileItemReader.java:248) at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:134) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131) at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at $Proxy30.open(Unknown Source) at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:93) at org.springframework.batch.core.step.item.ChunkMonitor.open(ChunkMonitor.java:105) at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:93) at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:301) at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:192) at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135) at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61) at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60) at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144) at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124) at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135) at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:281) at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:120) at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)