JIRA does not process multipart/alternative mails properly

2006-06-26 16:26:38,496 WARN [jira.issue.managers.DefaultAttachmentManager] Creating attachment without a file.  Aborting

An error was encountered whilst handling messsages from the mail server "localhost" using the handler "class com.atlassian.jira.service.util.handler.CreateOrCommentHandler".
> The error was:
> ------------------------
> "Exception creating comment null"
> ------------------------
> The error and the email that caused the error are attached to this email.

java.io.IOException
	at com.atlassian.jira.service.util.handler.AbstractMessageHandler.createAttachmentWithPart(AbstractMessageHandler.java:262)
	at com.atlassian.jira.service.util.handler.AbstractMessageHandler.handleMultipart(AbstractMessageHandler.java:209)
	at com.atlassian.jira.service.util.handler.AbstractMessageHandler.createAttachmentsForMessage(AbstractMessageHandler.java:192)
	at com.atlassian.jira.service.util.handler.AbstractCommentHandler.handleMessage(AbstractCommentHandler.java:90)
	at com.atlassian.jira.service.util.handler.CreateOrCommentHandler.handleMessage(CreateOrCommentHandler.java:107)
	at com.atlassian.jira.service.services.mail.MailFetcherService.run(MailFetcherService.java:184)
	at com.atlassian.jira.service.JiraServiceContainerImpl.run(JiraServiceContainerImpl.java:61)
	at com.atlassian.jira.service.ServiceRunner.execute(ServiceRunner.java:48)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)