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Spring batch - JSR 352 failing to rollback and retry when an skippable exception is thrown in the writer [BATCH-2376] #1228

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spring-issuemaster opened this issue Apr 20, 2015 · 10 comments

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@spring-issuemaster spring-issuemaster commented Apr 20, 2015

Ravikiran Butti opened BATCH-2376 and commented

I am using Spring Batch -JSR 352 job design.

In the writer I have 3 JDBC calls. If i throw an skippable exception after 2 JDBC calls have been successfully executed , then I could find the Spring batch is not able to rollback the transaction for the chunk and retry the chunk by placing the commit size as one. I am receiving the following execption after which the entire chunk is getting skipped and we are having an chunk commit. As a result the data already written to 2 JDBC tables are getting persisted missing the 3rd table data.

20 Apr 2015 18:38:28,811 ERROR [gov.state.nextgen.in.batch.sdx.chunk.writer.SdxRcvDlyWriter.writeItems(SdxRcvDlyWriter.java:74)] - Error while writing sdxRcvRecord :Exception occured during  processing 
	at gov.state.nextgen.in.batch.sdx.bo.impl.SdxRcvDlyBoImpl.write(SdxRcvDlyBoImpl.java:125)
	at gov.state.nextgen.in.batch.sdx.chunk.writer.SdxRcvDlyWriter.writeItems(SdxRcvDlyWriter.java:65)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:94)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
	at java.lang.reflect.Method.invoke(Method.java:619)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
	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:207)
	at com.sun.proxy.$Proxy18.writeItems(Unknown Source)
	at org.springframework.batch.jsr.item.ItemWriterAdapter.write(ItemWriterAdapter.java:55)
	at org.springframework.batch.core.jsr.step.item.JsrChunkProcessor.doPersist(JsrChunkProcessor.java:243)
	at org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor$5.doWithRetry(JsrFaultTolerantChunkProcessor.java:298)
	at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:263)
	at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:168)
	at org.springframework.batch.core.step.item.BatchRetryTemplate.execute(BatchRetryTemplate.java:222)
	at org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor.persist(JsrFaultTolerantChunkProcessor.java:348)
	at org.springframework.batch.core.jsr.step.item.JsrChunkProcessor.process(JsrChunkProcessor.java:114)
	at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:75)
	at org.springframework.batch.core.step.tasklet.TaskletStep$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:77)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
	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:198)
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
	at org.springframework.batch.core.jsr.job.flow.support.state.JsrStepState.handle(JsrStepState.java:53)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:165)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
	at org.springframework.batch.core.jsr.job.flow.JsrFlowJob.doExecute(JsrFlowJob.java:82)
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:304)
	at org.springframework.batch.core.jsr.launch.JsrJobOperator$2.run(JsrJobOperator.java:675)
	at java.lang.Thread.run(Thread.java:795)
20 Apr 2015 18:38:50,157 DEBUG [org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:293)] - Checking for rethrow: count=1 
20 Apr 2015 18:38:52,584 DEBUG [org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:313)] - Retry failed last attempt: count=1 
20 Apr 2015 18:38:53,403 DEBUG [org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor$6.recover(JsrFaultTolerantChunkProcessor.java:333)] - Skipping after failed write 
org.springframework.batch.core.step.item.ForceRollbackForWriteSkipException: Force rollback on skippable exception so that skipped item can be located.
	at org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor$5.doWithRetry(JsrFaultTolerantChunkProcessor.java:317)
	at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:263)
	at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:168)
	at org.springframework.batch.core.step.item.BatchRetryTemplate.execute(BatchRetryTemplate.java:222)
	at org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor.persist(JsrFaultTolerantChunkProcessor.java:348)
	at org.springframework.batch.core.jsr.step.item.JsrChunkProcessor.process(JsrChunkProcessor.java:114)
	at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:75)
	at org.springframework.batch.core.step.tasklet.TaskletStep$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:77)
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
	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:198)
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
	at org.springframework.batch.core.jsr.job.flow.support.state.JsrStepState.handle(JsrStepState.java:53)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:165)
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
	at org.springframework.batch.core.jsr.job.flow.JsrFlowJob.doExecute(JsrFlowJob.java:82)
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:304)
	at org.springframework.batch.core.jsr.launch.JsrJobOperator$2.run(JsrJobOperator.java:675)
	at java.lang.Thread.run(Thread.java:795)
Caused by: gov.state.nextgen.framework.batch.exception.NGBatchSkipRecordException: gov.state.nextgen.in.batch.exception.INBatchException: Exception occured during  processing 
	at gov.state.nextgen.in.batch.sdx.chunk.writer.SdxRcvDlyWriter.writeItems(SdxRcvDlyWriter.java:76)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:94)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
	at java.lang.reflect.Method.invoke(Method.java:619)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	at com.sun.proxy.$Proxy18.writeItems(Unknown Source)
	at org.springframework.batch.jsr.item.ItemWriterAdapter.write(ItemWriterAdapter.java:55)
	at org.springframework.batch.core.jsr.step.item.JsrChunkProcessor.doPersist(JsrChunkProcessor.java:243)
	at org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor$5.doWithRetry(JsrFaultTolerantChunkProcessor.java:298)
	... 26 more
Caused by: gov.state.nextgen.in.batch.exception.INBatchException: Exception occured during  processing 
	at gov.state.nextgen.in.batch.sdx.bo.impl.SdxRcvDlyBoImpl.write(SdxRcvDlyBoImpl.java:125)
	at gov.state.nextgen.in.batch.sdx.chunk.writer.SdxRcvDlyWriter.writeItems(SdxRcvDlyWriter.java:65)
	... 41 more20 Apr 2015 18:39:14,808 DEBUG [org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:88)] - Inputs not busy, ended: false 
20 Apr 2015 18:39:17,985 DEBUG [org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:437)] - Applying contribution: [StepContribution: read=2, written=0, filtered=0, readSkips=0, writeSkips=1, processSkips=0, exitStatus=EXECUTING] 
20 Apr 2015 18:39:18,984 INFO  [gov.state.nextgen.in.batch.sdx.chunk.writer.SdxRcvDlyWriter.checkpointInfo(SdxRcvDlyWriter.java:87)] - ParisRcvFedWriter - checkpointInfo(): step name: process, step execution id: 14939 
20 Apr 2015 18:39:19,314 TRACE [org.springframework.transaction.support.TransactionSynchronizationManager.getResource(TransactionSynchronizationManager.java:140)] - Retrieved value [org.springframework.jdbc.datasource.ConnectionHolder@5c4a884f] for key [org.apache.commons.dbcp.BasicDataSource@d9bdc230] bound to thread [SimpleAsyncTaskExecutor-1] 
20 Apr 2015 18:39:19,314 DEBUG [org.springframework.transaction.support.AbstractPlatformTransactionManager.handleExistingTransaction(AbstractPlatformTransactionManager.java:472)] - Participating in existing transaction 
20 Apr 2015 18:39:19,314 TRACE [org.springframework.transaction.interceptor.TransactionAspectSupport.prepareTransactionInfo(TransactionAspectSupport.java:447)] - Getting transaction for [org.springframework.batch.core.repository.support.SimpleJobRepository.updateExecutionContext] 
20 Apr 2015 18:39:19,315 DEBUG [org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:908)] - Executing prepared SQL update 
20 Apr 2015 18:39:19,315 DEBUG [org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:627)] - Executing prepared SQL statement [UPDATE BATCH_STEP_EXECUTION_CONTEXT SET SHORT_CONTEXT = ?, SERIALIZED_CONTEXT = ? WHERE STEP_EXECUTION_ID = ?] 

I am attaching my configuration files for reference. By debugging I could find my insert statements are getting executed under transaction managed by spring and I am sure there is no issue with the transaction manager configuration


Affects: 3.0.4

Reference URL: http://stackoverflow.com/questions/29622986/spring-batch-jsr-352-retry-fails-when-skip-exception-in-thrown-in-writer

Attachments:

Referenced from: pull request https://github.com/rbutti/SpringBatch/tree/master/SpringJSR352

Backported to: 4.0.0.M1

2 votes, 4 watchers

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@spring-issuemaster spring-issuemaster commented Apr 20, 2015

Ravikiran Butti commented

I think there is a bug in JsrFaultTolerantChunkProcessor.java. Please let me know if you need any more details from my end in this regards, Below is the summary of the error

20 Apr 2015 20:02:15,292 TRACE [org.springframework.transaction.support.TransactionSynchronizationManager.getResource(TransactionSynchronizationManager.java:140)] - Retrieved value [org.springframework.jdbc.datasource.ConnectionHolder@c41d0b21] for key [org.apache.commons.dbcp.BasicDataSource@f1bd9a87] bound to thread [SimpleAsyncTaskExecutor-1] 
20 Apr 2015 20:02:15,293 DEBUG [org.springframework.transaction.support.AbstractPlatformTransactionManager.handleExistingTransaction(AbstractPlatformTransactionManager.java:472)] - Participating in existing transaction 
20 Apr 2015 20:02:15,294 DEBUG [org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:293)] - Checking for rethrow: count=1 
20 Apr 2015 20:02:15,294 DEBUG [org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:313)] - Retry failed last attempt: count=1 
20 Apr 2015 20:02:15,294 DEBUG [org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor$6.recover(JsrFaultTolerantChunkProcessor.java:333)] - Skipping after failed write 
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@spring-issuemaster spring-issuemaster commented May 15, 2015

Michael Minella commented

A couple questions here:

  1. You have a property batch.jdbc.defaultAutoCommit on your dataSource. What is that set to? Obviously if auto commit is turned on, there isn't much Spring Batch can do to roll back (and a bad practice with Spring Batch in general).
  2. As a general note, you should only need to override the beans you want to override instead of all of them like you have in your baseContext.xml.
  3. I see you have annotation driven transactions turned on. This typically is a red flag for Batch since Spring Batch handles the transaction boundaries manually. Without being able to see the code of the ItemReaders/ItemWriters/etc, it's hard for me to be able to be sure, but if you're using @Transactional, that will cause issues.

To be able to really debug this, it would be useful to have examples of the components being used.

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@spring-issuemaster spring-issuemaster commented May 18, 2015

Ravikiran Butti commented

Hi Michael,

Thanx for having a look at this issue. Yes I have by defaultAutoCommit set to "FALSE" and have overriden baseContext.xml correctly. I was able to confirm these changes.

I will send you a sample program with all my components in a day or two so that you will be able to test and try to replicate the issue. Please let me know if your facing any of this similar issue in the code which you have or is it occuring only with my piece of code

Thanx in advance

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@spring-issuemaster spring-issuemaster commented Jul 1, 2015

Ravikiran Butti commented

Hi Michael,

I have implemented a sample standalone project and was able to replicate the issue above.

You can pull the reference project from below
https://github.com/rbutti/SpringRepository

To run the project you will be needing a MYSQL database running. The DB scripts required for the project can be found in the resource folder.

All that needs to be done is to checkout the project, and run the class App.java.

Scenarios Tried:

Skip Scenario: In the writer after persisting the records, Throw an skippable exception

Expected : Spring batch rollbacks current transaction, sets chunk size as 1 and retries the batch processing. If any record fails , the writer skips that record.

Results : Spring batch skips the entire chunk , and commits the transaction. Moves on processing the next chunk.

Retry Scenario: In the writer after persisting the records, Throw an retry exception

Expected : Spring batch rollbacks current transaction, and retries the chunk.

Results : Spring batch commits the chunk and retries again with the same chunk resulting duplicate records

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@spring-issuemaster spring-issuemaster commented Oct 5, 2015

Wim Depoorter commented

The issue seems to be in

	@Override
	@SuppressWarnings("unchecked")
	protected O transform(final StepContribution contribution, final I item) throws Exception {
...
		return batchRetryTemplate.execute(retryCallback, recoveryCallback);
	}

Where you arrive through org.springframework.batch.core.step.item.BatchRetryTemplate.execute(RetryCallback<T, E>, RecoveryCallback) in

public final <T, E extends Throwable> T execute(RetryCallback<T, E> retryCallback,
          RecoveryCallback<T> recoveryCallback) throws E {
     return doExecute(retryCallback, recoveryCallback, null);
}

and with RetryState state==null in

...
					if (shouldRethrow(retryPolicy, context, state)) {
						if (logger.isDebugEnabled()) {
							logger.debug("Rethrow in retry for policy: count=" + context.getRetryCount());
						}
						throw RetryTemplate.<E>wrapIfNecessary(e);
					}
...

ultimately

protected boolean shouldRethrow(RetryPolicy retryPolicy, RetryContext context, RetryState state) {
     return state != null && state.rollbackFor(context.getLastThrowable());
}

will not rethrow the exception because state == null.

The solution seems to be to modify org.springframework.batch.core.jsr.step.item.JsrFaultTolerantChunkProcessor<I, O> to include a -(Default)RetryState retryState- skippClassifier data member/field and use it in

	@Override
	@SuppressWarnings("unchecked")
	protected O transform(final StepContribution contribution, final I item) throws Exception {
...
		RetryState retryState = new DefaultRetryState(item, skippClassifier);
		return batchRetryTemplate.execute(retryCallback, recoveryCallback, retryState);
	}

The -retryState- skippClassifier needs to be created in org.springframework.batch.core.jsr.step.builder.JsrFaultTolerantStepBuilder.createChunkProcessor() where you have access to the skippableExceptionClasses. Don't forget to set the skippClassifier on the chunkProcessor.

While my knowledge of spring batch is limited, I have written this comment to share the result of my investigation. Perhaps there are unintended consequences with my solution of which I am not aware.

At the moment the only way to have rollback seems to be to do everything in the Processor, which may have it's own drawbacks.

Note that we have also come accross this issue and it seems that the current behaviour is not according to spec.

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@spring-issuemaster spring-issuemaster commented Oct 16, 2015

Ryan Dunckel commented

Michael Minella This is a killer issue as it inherently prevents the default retry behavior as described in 8.2.1.4.4 "Default Retry Behavior - Rollback" of JSR-352. It seems like JsrFaultTolerantChunkProcessor was implemented differently than FaultTolerantChunkProcessor (as described in detail in http://stackoverflow.com/a/16567433/3377183)

In short, any help in getting the behavior of skip, rollback, retry one-at-a-time would be much appreciated! Can you comment on this?

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@spring-issuemaster spring-issuemaster commented Dec 4, 2015

Ravikiran Butti commented

Hi Michael Minella,

Any update on this issue and its fix. This is currently acting as a huge blocker for the performance of our system and would be helpful if we get it fixed.

Kindly let me know if you need my help in testing and fixing this issue

Regards,
Ravikiran Butti

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@spring-issuemaster spring-issuemaster commented Apr 21, 2016

Michael Minella commented

JSR-352's skip logic is not the same as Spring Batch's. In Spring Batch, when an exception is thrown from the ItemWriter we roll back the transaction and replay it with the chunk interval of 1 so that we can identify which item caused the exception and subsequently skip it. JSR-352 does not have that logic. I have an email out requesting clarification as to what, exactly, the expected behavior is for a skip in this scenario (that can be found here: https://java.net/projects/jbatch/lists/public/archive/2016-04/message/2). The closest I've found in the spec is section 11.9 but that states that after an exception is thrown within the ItemWriter the chunk is rolled back and retried as normally which doesn't address how to identify which item to skip.

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@spring-issuemaster spring-issuemaster commented Apr 21, 2016

Ryan Dunckel commented

Michael Minella, seems like sections:

  • 8.2.1.4.3 Retry and Skip the Same Exception
  • 8.2.1.4.4 Default Retry Behavior - Rollback

...define what you are referring to, no? If not, can you clarify?

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@spring-issuemaster spring-issuemaster commented Oct 5, 2016

Michael Minella commented

I'm sorry for the delay in responding to this issue. Here are my current findings:

  1. The spec document does not clearly identify what to do when a skippable exception is thrown during the ItemWriter phase of a chunk. This is confirmed by the spec lead in his response to my previously linked question: https://java.net/projects/jbatch/lists/public/archive/2016-04/message/3
  2. With regards to 8.2.1.4.3 and 8.2.1.4.4, both of those are retry scenarios (instead of skip). The configuration provided with this issue only uses the skip functionality. Introducing the retry would fall under those areas.
  3. Scott's response to my question "Note that there's no "rollback" on skip, we just move on to the next chunk. The rollback is only on retry." indicates that our current processing, while not ideal from a business perspective, is consistent with the expected behavior of JSR-352.

Based on the above notes, and my testing that emulates that behavior, I'm going to close this issue. Until this can be addressed at the JSR level, I'm not sure what else we can do and stay within compliance with the JSR's TCK.

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