Andrian,
This is all still pretty vague. I'm not sure how we can help you
without a reproducible test. The best would be to provide a failing
unit test as a GitHub PR.
TY
Gary
On Fri, Aug 2, 2024 at 12:20 AM Adrian Mikula
<adrian.mik...@rmtglobal.com> wrote:
>
> Hi Gary,
>
> Sorry, for security reasons we can't share the full stack trace. But I did
> find some more details we recorded while debugging this:
>
> By debugging, we worked out that the problem manifests when we get to the
> Java code that builds and sends the email, but before any email is actually
> sent out. It seems to occur around the time when the Tomee9 classloaders are
> trying to load a bunch of jakarta.mail classes and failing to find them. We
> also worked out that the org.apache.commons.email2 library calls
> jakarta.mail, which in turn calls the apache.geronimo library. We also found
> that after the problem manifests, there are a couple of extra RMI TCP threads
> created which have a HTTP connection and have some kind of resource lock.
>
> Regards,
> Adrian
>
> -----Original Message-----
> From: Gary Gregory <garydgreg...@gmail.com>
> Sent: Friday, July 26, 2024 7:41 PM
> To: Commons Developers List <dev@commons.apache.org>
> Subject: Re: [EMAIL] Serious network crash bug for commons email 2 library
>
> What is the stack trace? That's a critical element you left out. It could
> just be a class path entry ordering issue.
>
> Gary
>
> On Fri, Jul 26, 2024, 7:39 AM Elliotte Rusty Harold <elh...@ibiblio.org>
> wrote:
>
> > Interesting. Thanks,
> >
> > Since commons-mail is pure Java, there's no way this can be completely
> > caused by bugs in commons-mail. though it sounds like some detail in
> > commons-mail is tickling other bugs elsewhere in the chain. My guess
> > is the network driver is at fault since that's what crashes and it
> > only happens in one version of the driver, but it could be the JDK,
> > the OS, or all three.
> >
> >
> > On Fri, Jul 26, 2024 at 4:52 AM Adrian Mikula
> > <adrian.mik...@rmtglobal.com> wrote:
> > >
> > > Hi everyone,
> > >
> > > I am a senior software engineer working on a TomEE project and as
> > > part
> > of our recent upgrade to Jakarta 10 and Java 17, we also upgraded the
> > Apache Commons email library to version 2 which you just released.
> > >
> > > We encountered a very critical bug which only occurs with certain
> > hardware and drivers, but it has very serious impacts on the host OS
> > and would be catastrophic if it were to happen on production systems.
> > I suggest you look into this as a matter of urgency because I would
> > not want anyone else to encounter this bug as it is very bad, but also
> > very obscure and could easily be missed during testing.
> > >
> > >
> > > PROBLEM DESCRIPTION:
> > > On certain physical hardware, with a specific OS network driver
> > installed, if the Apache commons email2 library is used and an email
> > is sent, the email fails to send, and the OS network driver crashes
> > and the computer loses all network access. The network access can
> > only be restored by restarting the computer, sometimes multiple times.
> > >
> > >
> > > HARDWARE & OS:
> > > Computer: Optiplex 7000
> > > Windows 11
> > > Ethernet driver: Intel 12.19.2.45
> > >
> > > SOFTWARE:
> > > Java 17
> > > Jakarta 10
> > > TomEE 9.1.2
> > >
> > > These dependencies caused the issue:
> > > commons-mail = { module =
> > > "org.apache.commons:commons-email2-jakarta",
> > version = "2.0.0-M1" }
> > > commons-mail-core = { module =
> > > "org.apache.commons:commons-email2-core",
> > version = "2.0.0-M1" }
> > >
> > > We tried both the snapshot version from a few months ago, and the
> > > final
> > release version from a few weeks ago.
> > > Snapshot repo:
> > https://repository.apache.org/content/repositories/snapshots/
> > > Release repo:
> > https://mvnrepository.com/artifact/org.apache.commons/commons-email2-j
> > akarta/2.0.0-M1
> > >
> > > In the Java code:
> > > import org.apache.commons.mail2.core.EmailException;
> > > import org.apache.commons.mail2.jakarta.HtmlEmail;
> > >
> > >
> > > STEPS TO REPRODUCE:
> > >
> > > 1. Make sure you are testing on a computer with the same physical
> > hardware/network card
> > > 2. Install the exact same version of the Intel ethernet driver.
> > > This
> > issue does not occur for older/newer versions of the Intel driver
> > > 3. Run TomEE9 with the apache-commons-email2 library in the libs
> > folder of a WAR deployment.
> > > 4. Send an email.
> > > 5. The email will never get sent across the network.
> > > 6. The computer will lose all network access.
> > > 7. Network access will only be restored after restarting the computer.
> > >
> > > DEBUG NOTES:
> > >
> > > While debugging the Java stack trace, we found that if the
> > commons-email2 libraries are used, somehow one of the Java classes in
> > geronimo-mail is called which is part of the TomEE/libs and this
> > crashes the computer network. So it might be an issue with
> > commons-email2 communicating with certain 3rd-party libraries in
> > combination with certain hardware/drivers.
> > >
> > >
> > > STEPS TO FIX:
> > >
> > > If we add an excludes for the Geronimo library, and swap
> > apache-commons-email with a different email implementation library, it
> > seems fine.
> > >
> > >
> > >
> > > Please also note if I update my network driver to the latest Intel
> > version, 2.0.0-M1 doesn't crash my network. It also doesn't crash with
> > older driver versions, only version 12.19.2.45. This is not an issue
> > for Linux systems.
> > >
> > > Please let me know if you need any more information about how to
> > reproduce the issue.
> > >
> > > Regards,
> > > Adrian
> >
> >
> >
> > --
> > Elliotte Rusty Harold
> > elh...@ibiblio.org
> >
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>
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