ImapIdleChannelAdapter: une erreur s'est produite dans la tâche inactive

Question

Je reçois l'exception suivante dans une application Spring Boot 1.4.3. Il utilise Spring Integration 4.3.6.

Le serveur imap est MS-Exchange.

Une idée d'où ça vient?

Aug 22 14:46:42 2017-08-22 14:46:42.631 WARN 537 --- [ask-scheduler-1] o.s.i.mail.ImapIdleChannelAdapter  : error occurred in idle task 
Aug 22 14:46:42 javax.mail.FolderClosedException: * BYE JavaMail Exception: java.io.IOException: Connection dropped by server? 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.handleIdle(IMAPFolder.java:3199) 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.idle(IMAPFolder.java:3043) 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.idle(IMAPFolder.java:2995) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapMailReceiver.waitForNewMessages(ImapMailReceiver.java:175) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapIdleChannelAdapter$IdleTask.run(ImapIdleChannelAdapter.java:271) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapIdleChannelAdapter$ReceivingTask.run(ImapIdleChannelAdapter.java:241) 
Aug 22 14:46:42 at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) 
Aug 22 14:46:42 at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) 
Aug 22 14:46:42 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
Aug 22 14:46:42 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
Aug 22 14:46:42 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) 
Aug 22 14:46:42 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) 
Aug 22 14:46:42 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
Aug 22 14:46:42 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
Aug 22 14:46:42 at java.lang.Thread.run(Thread.java:745) 

Aug 22 14:46:42 2017-08-22 14:46:42.632 WARN 537 --- [ask-scheduler-1] o.s.i.mail.ImapIdleChannelAdapter  : Failed to execute IDLE task. Will attempt to resubmit in 10000 milliseconds. 
Aug 22 14:46:42 java.lang.IllegalStateException: Failure in 'idle' task. Will resubmit. 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapIdleChannelAdapter$IdleTask.run(ImapIdleChannelAdapter.java:290) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapIdleChannelAdapter$ReceivingTask.run(ImapIdleChannelAdapter.java:241) 
Aug 22 14:46:42 at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) 
Aug 22 14:46:42 at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) 
Aug 22 14:46:42 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
Aug 22 14:46:42 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
Aug 22 14:46:42 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) 
Aug 22 14:46:42 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) 
Aug 22 14:46:42 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
Aug 22 14:46:42 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
Aug 22 14:46:42 at java.lang.Thread.run(Thread.java:745) 
Aug 22 14:46:42 Caused by: javax.mail.FolderClosedException: * BYE JavaMail Exception: java.io.IOException: Connection dropped by server? 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.handleIdle(IMAPFolder.java:3199) 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.idle(IMAPFolder.java:3043) 
Aug 22 14:46:42 at com.sun.mail.imap.IMAPFolder.idle(IMAPFolder.java:2995) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapMailReceiver.waitForNewMessages(ImapMailReceiver.java:175) 
Aug 22 14:46:42 at org.springframework.integration.mail.ImapIdleChannelAdapter$IdleTask.run(ImapIdleChannelAdapter.java:271) 
Aug 22 14:46:42 ... 10 common frames omitted 

Spring Integration est configuré comme ceci:

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
     http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd 
     http://www.springframework.org/schema/integration/mail http://www.springframework.org/schema/integration/mail/spring-integration-mail.xsd 
     http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd" 
    xmlns:int="http://www.springframework.org/schema/integration" 
    xmlns:int-mail="http://www.springframework.org/schema/integration/mail" 
    xmlns:util="http://www.springframework.org/schema/util"> 

    <util:properties id="javaMailProperties"> 
     <prop key="mail.imap.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop> 
     <prop key="mail.imap.socketFactory.fallback">false</prop> 
     <prop key="mail.store.protocol">imaps</prop> 
     <prop key="mail.debug">false</prop> 
    </util:properties> 

    <int:channel id="receiveChannel" datatype="javax.mail.Message" /> 

    <int-mail:imap-idle-channel-adapter 
     id="customAdapter" 
     store-uri="imaps://user:password@exchangehost/INBOX" 
     channel="receiveChannel" 
     auto-startup="true" 
     should-delete-messages="true" 
     should-mark-messages-as-read="true" 
     java-mail-properties="javaMailProperties" /> 

</beans> 

Answer 1

<prop key="mail.debug">true</prop> 

Cette plupart du temps comme il y a un problème pendant que le client communique avec le serveur, activer le journal de débogage de courrier peut vous aider à vérifier la cause. J'ai eu pareil cas, mon cas est que le serveur ne peut pas reconnaître les commandes du client

IMAP email channel adapter throw exception "A5 BAD invalid command or parameters;"