[ 
https://issues.apache.org/jira/browse/JAMES-3915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wojtek updated JAMES-3915:
--------------------------
    Description: 
While running imapsync, we encountered error 
{{o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - listener 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex exceeded 
maximum retry(8) to handle event org.apache.james.mailbox.even}}
{{ts.MailboxEvents.Added}}

There doesn't seem to be more information (i.e. which email triggered the 
issue). From the cursory check it seems that the message that would be added to 
the index is probably "faulty" so the header can't be properly parsed (?!) 
resulting in null.

There is another tiny nuisance - before this finall exception/stacktrace, there 
are repeated "plain" stacktrace (I would guess the retries yielding the failure 
at retry) - is there a way to avoid the retry NPEs being logged and only 
leaving the final one (with retry failure)?

Stacktrace (final entry):

{{21:45:28.406 [ERROR] o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - 
listener org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex 
exceeded maximum retry(8) to handle event org.apache.james.mailbox.even}}
{{ts.MailboxEvents.Added}}
{{java.lang.NullPointerException: null}}
{{        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)}}
{{        at 
com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)}}
{{        at 
com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)}}
{{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)}}
{{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)}}
{{        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)}}
{{        ... 9 common frames omitted}}
{{Wrapped by: reactor.core.Exceptions$RetryExhaustedException: Retries 
exhausted: 8/8}}
{{        at reactor.core.Exceptions.retryExhausted(Exceptions.java:306)}}
{{        at 
reactor.util.retry.RetryBackoffSpec.lambda$static$0(RetryBackoffSpec.java:68)}}
{{        at 
reactor.util.retry.RetryBackoffSpec.lambda$null$4(RetryBackoffSpec.java:560)}}
{{        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:183)}}
{{        at 
reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)}}
{{        at 
reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:471)}}
{{        at 
reactor.core.publisher.SinkManyEmitterProcessor.tryEmitNext(SinkManyEmitterProcessor.java:269)}}
{{        at 
reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)}}
{{        at 
reactor.core.publisher.InternalManySink.emitNext(InternalManySink.java:27)}}
{{        at 
reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:190)}}
{{        at 
reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)}}
{{        at 
reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onError(MonoPeekTerminal.java:258)}}
{{        at 
reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:121)}}
{{        at 
reactor.core.publisher.MonoUsing$MonoUsingSubscriber.onError(MonoUsing.java:260)}}
{{        at 
reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onError(MonoIgnoreThen.java:278)}}
{{        at 
reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)}}
{{        at 
reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:315)}}
{{        at 
reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)}}
{{        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)}}
{{        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)}}
{{        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)}}
{{        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)}}
{{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)}}
{{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)}}
{{        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)}}
{{        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
 Source)}}
{{        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)}}
{{        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)}}
{{        at java.base/java.lang.Thread.run(Unknown Source)}}

Stacktrace (repeating NPEs):
{{21:45:19.638 [ERROR] o.a.j.e.d.InVmEventDelivery - Error while processing 
listener}}
{{java.lang.NullPointerException: null}}
{{        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)}}
{{        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)}}
{{        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)}}
{{        at 
com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)}}
{{        at 
com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)}}
{{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)}}
{{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)}}
{{        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)}}
{{        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)}}
{{        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)}}
{{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)}}
{{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)}}
{{        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)}}
{{        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
 Source)}}
{{        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)}}
{{        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)}}
{{        at java.base/java.lang.Thread.run(Unknown Source)}}

  was:
While running imapsync, we encountered error 
{{o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - listener 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex exceeded 
maximum retry(8) to handle event org.apache.james.mailbox.even
ts.MailboxEvents.Added}}

There doesn't seem to be more information (i.e. which email triggered the 
issue). From the cursory check it seems that the message that would be added to 
the index is probably "faulty" so the header can't be properly parsed (?!) 
resulting in null.

There is another tiny nuisance - before this finall exception/stacktrace, there 
are repeated "plain" stacktrace (I would guess the retries yielding the failure 
at retry) - is there a way to avoid the retry NPEs being logged and only 
leaving the final one (with retry failure)?

Stacktrace (final entry):

{{21:45:28.406 [ERROR] o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - 
listener org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex 
exceeded maximum retry(8) to handle event org.apache.james.mailbox.even
ts.MailboxEvents.Added
java.lang.NullPointerException: null
        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)
        at 
com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)
        at 
com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)
        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)
        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)
        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)
        ... 9 common frames omitted
Wrapped by: reactor.core.Exceptions$RetryExhaustedException: Retries exhausted: 
8/8
        at reactor.core.Exceptions.retryExhausted(Exceptions.java:306)
        at 
reactor.util.retry.RetryBackoffSpec.lambda$static$0(RetryBackoffSpec.java:68)
        at 
reactor.util.retry.RetryBackoffSpec.lambda$null$4(RetryBackoffSpec.java:560)
        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:183)
        at 
reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)
        at 
reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:471)
        at 
reactor.core.publisher.SinkManyEmitterProcessor.tryEmitNext(SinkManyEmitterProcessor.java:269)
        at 
reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)
        at 
reactor.core.publisher.InternalManySink.emitNext(InternalManySink.java:27)
        at 
reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:190)
        at 
reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)
        at 
reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onError(MonoPeekTerminal.java:258)
        at 
reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:121)
        at 
reactor.core.publisher.MonoUsing$MonoUsingSubscriber.onError(MonoUsing.java:260)
        at 
reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onError(MonoIgnoreThen.java:278)
        at 
reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)
        at 
reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:315)
        at 
reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)
        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)
        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)
        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)
        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)
        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
 Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown 
Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown 
Source)
        at java.base/java.lang.Thread.run(Unknown Source)}}

Stacktrace (repeating NPEs):
{{21:42:47.908 [ERROR] o.a.j.e.d.InVmEventDelivery - Error while processing 
listener
java.lang.NullPointerException: null
        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)
        at 
org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)
        at 
org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)
        at 
com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)
        at 
com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)
        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)
        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)
        at 
reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)
        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)
        at 
reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)
        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)
        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)
        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
 Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown 
Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown 
Source)
        at java.base/java.lang.Thread.run(Unknown Source)}}


> NPE in LuceneMessageSearchIndex for MailboxEvents.Added while running imapsync
> ------------------------------------------------------------------------------
>
>                 Key: JAMES-3915
>                 URL: https://issues.apache.org/jira/browse/JAMES-3915
>             Project: James Server
>          Issue Type: Bug
>    Affects Versions: 3.9.0
>         Environment: Ran in docker container
>            Reporter: Wojtek
>            Priority: Major
>
> While running imapsync, we encountered error 
> {{o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - listener 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex exceeded 
> maximum retry(8) to handle event org.apache.james.mailbox.even}}
> {{ts.MailboxEvents.Added}}
> There doesn't seem to be more information (i.e. which email triggered the 
> issue). From the cursory check it seems that the message that would be added 
> to the index is probably "faulty" so the header can't be properly parsed (?!) 
> resulting in null.
> There is another tiny nuisance - before this finall exception/stacktrace, 
> there are repeated "plain" stacktrace (I would guess the retries yielding the 
> failure at retry) - is there a way to avoid the retry NPEs being logged and 
> only leaving the final one (with retry failure)?
> Stacktrace (final entry):
> {{21:45:28.406 [ERROR] o.a.j.e.d.EventDelivery$Retryer$BackoffRetryer - 
> listener org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex 
> exceeded maximum retry(8) to handle event org.apache.james.mailbox.even}}
> {{ts.MailboxEvents.Added}}
> {{java.lang.NullPointerException: null}}
> {{        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)}}
> {{        at 
> com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)}}
> {{        at 
> com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)}}
> {{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)}}
> {{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)}}
> {{        at 
> reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)}}
> {{        ... 9 common frames omitted}}
> {{Wrapped by: reactor.core.Exceptions$RetryExhaustedException: Retries 
> exhausted: 8/8}}
> {{        at reactor.core.Exceptions.retryExhausted(Exceptions.java:306)}}
> {{        at 
> reactor.util.retry.RetryBackoffSpec.lambda$static$0(RetryBackoffSpec.java:68)}}
> {{        at 
> reactor.util.retry.RetryBackoffSpec.lambda$null$4(RetryBackoffSpec.java:560)}}
> {{        at 
> reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:183)}}
> {{        at 
> reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)}}
> {{        at 
> reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:471)}}
> {{        at 
> reactor.core.publisher.SinkManyEmitterProcessor.tryEmitNext(SinkManyEmitterProcessor.java:269)}}
> {{        at 
> reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)}}
> {{        at 
> reactor.core.publisher.InternalManySink.emitNext(InternalManySink.java:27)}}
> {{        at 
> reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:190)}}
> {{        at 
> reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)}}
> {{        at 
> reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onError(MonoPeekTerminal.java:258)}}
> {{        at 
> reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:121)}}
> {{        at 
> reactor.core.publisher.MonoUsing$MonoUsingSubscriber.onError(MonoUsing.java:260)}}
> {{        at 
> reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onError(MonoIgnoreThen.java:278)}}
> {{        at 
> reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)}}
> {{        at 
> reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:315)}}
> {{        at 
> reactor.core.publisher.MonoIgnoreElements$IgnoreElementsSubscriber.onError(MonoIgnoreElements.java:84)}}
> {{        at 
> reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)}}
> {{        at 
> reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)}}
> {{        at 
> reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)}}
> {{        at 
> reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)}}
> {{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)}}
> {{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)}}
> {{        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)}}
> {{        at 
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
>  Source)}}
> {{        at 
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)}}
> {{        at 
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)}}
> {{        at java.base/java.lang.Thread.run(Unknown Source)}}
> Stacktrace (repeating NPEs):
> {{21:45:19.638 [ERROR] o.a.j.e.d.InVmEventDelivery - Error while processing 
> listener}}
> {{java.lang.NullPointerException: null}}
> {{        at java.base/java.io.ByteArrayInputStream.<init>(Unknown Source)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.JPAMailboxMessage.getHeaderContent(JPAMailboxMessage.java:116)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getFullContent(AbstractJPAMailboxMessage.java:492)}}
> {{        at 
> org.apache.james.mailbox.jpa.mail.model.openjpa.AbstractJPAMailboxMessage.getAttachments(AbstractJPAMailboxMessage.java:533)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.hasAttachment(LuceneMessageSearchIndex.java:784)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.createMessageDocument(LuceneMessageSearchIndex.java:576)}}
> {{        at 
> org.apache.james.mailbox.lucene.search.LuceneMessageSearchIndex.lambda$add$3(LuceneMessageSearchIndex.java:1261)}}
> {{        at 
> com.github.fge.lambdas.runnable.RunnableChainer.doRun(RunnableChainer.java:18)}}
> {{        at 
> com.github.fge.lambdas.runnable.ThrowingRunnable.run(ThrowingRunnable.java:16)}}
> {{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:73)}}
> {{        at reactor.core.publisher.MonoRunnable.call(MonoRunnable.java:32)}}
> {{        at 
> reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:190)}}
> {{        at 
> reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.runAsync(FluxPublishOn.java:440)}}
> {{        at 
> reactor.core.publisher.FluxPublishOn$PublishOnSubscriber.run(FluxPublishOn.java:527)}}
> {{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)}}
> {{        at reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)}}
> {{        at java.base/java.util.concurrent.FutureTask.run(Unknown Source)}}
> {{        at 
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
>  Source)}}
> {{        at 
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)}}
> {{        at 
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)}}
> {{        at java.base/java.lang.Thread.run(Unknown Source)}}



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