Question

在ImapMailReceiver中有com.sun.mail.imap.IMAPFolder和com.sun.mail.imap.IMAPMessage的强制转换。当我们的应用程序从spring integration 2.0.1升级到更新的东西时（因为2.0.1中的错误）我们的app现在在运行时因ClassCastException而失败，因为我们没有使用来自com.sun的Message impl，我们正在使用自定义的东西。这个演员会被删除吗？

编辑，这是使用2.2.3运行的堆栈跟踪：

org.springframework.integration.MessagingException: failure occurred while polling for mail
       at org.springframework.integration.mail.MailReceivingMessageSource.receive(MailReceivingMessageSource.java:73)
        at org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:111)
        at org.springframework.integration.endpoint.AbstractTransactionSynchronizingPollingEndpoint.doPoll(AbstractTransactionSynchronizingPollingEndpoint.java:67)
        at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:146)
        at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:144)
        at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:236)
        at org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52)
        at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:48)
        at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:49)
        at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:231)
        at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:53)
        at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassCastException: our.custom.IMAPMessage cannot be cast to com.sun.mail.imap.IMAPMessage
        at org.springframework.integration.mail.ImapMailReceiver.searchForNewMessages(ImapMailReceiver.java:146)
        at org.springframework.integration.mail.AbstractMailReceiver.receive(AbstractMailReceiver.java:235)
        at org.springframework.integration.mail.MailReceivingMessageSource.receive(MailReceivingMessageSource.java:59)
        ... 19 more

Answer 1

请参阅提问。

请继续打开Improvement JIRA Issue，然后我们来看看。更好的是，make a contribution。

请记住，它可能会导致问题 - 例如我们必须投射以设置peek属性......

((IMAPMessage) message).setPeek(true);

在ImapMailReceiver中进行不适当的类转换

1 个答案: