Le 20/06/2018 à 19:00, Guillaume Nodet a écrit :
> So I've enabled debug logging which helps a bit.
> https://gist.github.com/gnodet/04b08b1d19caa67359f352522774a70d
>
> I suspect a concurrent access to the byte buffer because the exception
> should be thrown from the HeapByteBuffer#checkIndex instead of from
> HeapByteBuffer#get. So I think there is a concurrent access which is
> called between the call to checkIndex and the array access.
> But this exception may be irrelevant as it's happening while handling
> another exception which is
> org.apache.mina.core.write.WriteToClosedSessionException
>
> While debugging, I noticed that during the call to isCloseNotify, the
> IoBuffer is at the end, so not sure that this is expected by the code.
Looking at the logs, what I see is that the apps is sending a message :
2018-06-20 18:51:59,863 [NioProcessor-2 ] DEBUG SslFilter
- Session Server[1](SSL): Writing Message : WriteRequest:
HeapBuffer[pos=0 lim=177 cap=256: 3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E
3D 22 31 2E 30 22 20 65 6E 63 6F 64 69 6E 67 3D 22 55 54 46 2D 38 22 3F
3E 3C 65 72 72 6F 72 20 78 6D 6C 6E 73 3D 22 75 72 6E 3A 69 65 74 66 3A
70 61 72 61 6D 73 3A 78 6D 6C 3A 6E 73 3A 78 6D 70 70 2D 73 74 72 65 61
6D 73 22 3E 3C 62 61 64 2D 66 6F 72 6D 61 74 3E 3C 2F 62 61 64 2D 66 6F
72 6D 61 74 3E 3C 74 65 78 74 20 78 6D 6C 3A 6C 61 6E 67 3D 22 65 6E 5F
55 53 22 3E 63 6F 75 6C 64 20 6E 6F 74 20 70 72 6F 63 65 73 73 20 69 6E
63 6F 6D 69 6E 67 20 73 74 61 6E 7A 61 3C 2F 74 65 78 74 3E...]
ie "<?xml version="1.0" encoding="UTF-8"?><error
xmlns="urn:ietf:params:xml:ns:xmpp-streams"><bad-format></bad-format><text
xml:lang="en_US">could not process incoming stanza</text>"
then it closes the session:
2018-06-20 18:51:59,864 [NioProcessor-2 ] INFO MinaBackedSessionContext
- session will be closed now
Now, what happens is that MINA will try to flush the pending messages,
which leads to errors.
What need to be analyzed is why we get a IndexOutOfBoundsException, but
regardless, it's teh app that has closed the connection, MINA is not
responsible for that. Unless the error message is a direct consequence
of a MINA failure...
--
Emmanuel Lecharny
Symas.com
directory.apache.org
