Commons-net version 2.0 jar unable to download files of time stamp 29th
February.
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Key: NET-447
URL: https://issues.apache.org/jira/browse/NET-447
Project: Commons Net
Issue Type: Bug
Components: FTP
Affects Versions: 2.0
Environment: Windows Server 2003.
Reporter: Jeevesh Mishra
Fix For: 2.0
When FTP Client of commons-net.jar (version 2.0) tries to get the list of files
on FTP server then for the files of time stamp date 29th Feb 2012 it returns
null value and in turn throws Null pointer Exception.
Because the files are read in date viz sequence, thus it reads the file names
correctly till 28th Feb but as soon as it gets a file of time-stamp date 29th
it throws Null Pointer Exception and all the files after that are not read.
Also its been mentioned in the case mentioned at following url that this issue
has been resolved in version 1.5 :
https://issues.apache.org/jira/browse/NET-188
Thus ideally such solution would have been included in all later versions. We
would require a patch to resolve this.
Also for your information we are using Wicket frame work. Do you forsee any Jar
conflict with commons-net version 2.0 in such scenario.
We are also attaching the Exceptions trace as follows:
ERROR [01 Mar 2012 13:37:33]
com.nordea.npdb.datafeed.sp.timertasks.DataFeedSpUsStockReportFtpImpl.execute(DataFeedSpUsStockReportFtpImpl.java:48)
: Timer_DataFeedSpUsStockReportFtp [FAILED]
java.lang.NullPointerException
at
com.nordea.npdb.bl.facade.DataFeedServiceImpl.saveFtpFetcherFiles(DataFeedServiceImpl.java:108)[NPDB-core-0-SNAPSHOT.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)[:1.6.0_24]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[:1.6.0_24]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_24]
at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_24]
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)[spring-tx-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at $Proxy105.saveFtpFetcherFiles(Unknown Source)[:]
at
com.nordea.npdb.datafeed.sp.timertasks.DataFeedSpUsStockReportFtpImpl.execute(DataFeedSpUsStockReportFtpImpl.java:32)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.batch.OldBatchJob.execute(OldBatchJob.java:12)[NPDB-core-0-SNAPSHOT.jar:]
at
org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:386)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)[spring-tx-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:264)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:76)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:367)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:214)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:143)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:250)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:281)[spring-batch-core-2.1.7.RELEASE.jar:]
at
com.nordea.npdb.infrastructure.batch.NpdbJobLauncherImpl$2.run(NpdbJobLauncherImpl.java:116)[NPDB-core-0-SNAPSHOT.jar:]
at
org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)[spring-core-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
com.nordea.npdb.infrastructure.batch.NpdbJobLauncherImpl.run(NpdbJobLauncherImpl.java:110)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.batch.BatchFacadeImpl.runJobUsingCurrentThread(BatchFacadeImpl.java:83)[NPDB-core-0-SNAPSHOT.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)[:1.6.0_24]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[:1.6.0_24]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_24]
at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_24]
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at $Proxy136.runJobUsingCurrentThread(Unknown Source)[:]
at
com.nordea.npdb.infrastructure.scheduler.SchedulerServiceImpl$SchedulerThread$1.doWithinTimingWithoutResult(SchedulerServiceImpl.java:509)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.pubdb.timer.TimingCallbackWithoutResult.doWithinTiming(TimingCallbackWithoutResult.java:6)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.pubdb.timer.TimingTemplateImpl.execute(TimingTemplateImpl.java:105)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.scheduler.SchedulerServiceImpl$SchedulerThread.run(SchedulerServiceImpl.java:502)[NPDB-core-0-SNAPSHOT.jar:]
ERROR [01 Mar 2012 13:37:38]
org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:212)
: Encountered an error executing the step
java.lang.RuntimeException: Timer_DataFeedSpUsStockReportFtp [FAILED]
at
com.nordea.npdb.datafeed.sp.timertasks.DataFeedSpUsStockReportFtpImpl.execute(DataFeedSpUsStockReportFtpImpl.java:49)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.batch.OldBatchJob.execute(OldBatchJob.java:12)[NPDB-core-0-SNAPSHOT.jar:]
at
org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:386)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)[spring-tx-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:264)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:76)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:367)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:214)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:143)[spring-batch-infrastructure-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:250)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)[spring-batch-core-2.1.7.RELEASE.jar:]
at
org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:281)[spring-batch-core-2.1.7.RELEASE.jar:]
at
com.nordea.npdb.infrastructure.batch.NpdbJobLauncherImpl$2.run(NpdbJobLauncherImpl.java:116)[NPDB-core-0-SNAPSHOT.jar:]
at
org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)[spring-core-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
com.nordea.npdb.infrastructure.batch.NpdbJobLauncherImpl.run(NpdbJobLauncherImpl.java:110)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.batch.BatchFacadeImpl.runJobUsingCurrentThread(BatchFacadeImpl.java:83)[NPDB-core-0-SNAPSHOT.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)[:1.6.0_24]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[:1.6.0_24]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_24]
at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_24]
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196)[spring-aop-3.0.3.RELEASE.jar:3.0.3.RELEASE]
at $Proxy136.runJobUsingCurrentThread(Unknown Source)[:]
at
com.nordea.npdb.infrastructure.scheduler.SchedulerServiceImpl$SchedulerThread$1.doWithinTimingWithoutResult(SchedulerServiceImpl.java:509)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.pubdb.timer.TimingCallbackWithoutResult.doWithinTiming(TimingCallbackWithoutResult.java:6)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.pubdb.timer.TimingTemplateImpl.execute(TimingTemplateImpl.java:105)[NPDB-core-0-SNAPSHOT.jar:]
at
com.nordea.npdb.infrastructure.scheduler.SchedulerServiceImpl$SchedulerThread.run(SchedulerServiceImpl.java:502)[NPDB-core-0-SNAPSHOT.jar:]
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