Benoit, Below is the method that generated the error. This code is in:
org.apache.james.queue.jms.JMSMailQueue.deQueue(JMSMailQueue.java:171) Looking at this code, it seems that if message is null, it will always generate an error because the while(true){} loop will never exit otherwise. For your debugging purposes, the message consumer is expecting a message and does not receive it within the timeout value, so it generates an error. I do not know why the message never comes through, but that’s where you should look for the problem. HTH Robert public MailQueueItem deQueue() throws MailQueueException { Connection connection = null; Session session = null; Message message; MessageConsumer consumer = null; while (true) { try { connection = connectionFactory.createConnection(); connection.start(); session = connection.createSession(true, Session.SESSION_TRANSACTED); Queue queue = session.createQueue(queueName); consumer = session.createConsumer(queue, getMessageSelector()); message = consumer.receive(10000); if (message != null) { return createMailQueueItem(connection, session, consumer, message); } else { session.commit(); if (consumer != null) { try { consumer.close(); } catch (JMSException e1) { // ignore on rollback } } try { if (session != null) session.close(); } catch (JMSException e1) { // ignore here } try { if (connection != null) connection.close(); } catch (JMSException e1) { // ignore here } } } catch (Exception e) { if (session != null) { try { session.rollback(); } catch (JMSException e1) { // ignore on rollback } } if (consumer != null) { try { consumer.close(); } catch (JMSException e1) { // ignore on rollback } } try { if (session != null) session.close(); } catch (JMSException e1) { // ignore here } try { if (connection != null) connection.close(); } catch (JMSException e1) { // ignore here } throw new MailQueueException("Unable to dequeue next message", e); } } } On Jan 12, 2015, at 9:37 AM, Benoit Tellier <btell...@linagora.com> wrote: > Yes, I have well placed my jar in the conf/lib directory of my working > james directory. > > I tested it again today and I still get the exact same behaviour... > > Thanks for the reply, > > Benoit > > On 01/12/15 14:04, Markus Moldaschl wrote: >> Did you put the jar with your custom matcher in the proper directory?? e.g. >> with 3.0.0-beta3 you have to put it in [JAMES_HOME]/conf/lib >> >> kr >> Markus >> >> >> >>> Am 09.01.2015 um 15:10 schrieb Benoit Tellier <btell...@linagora.com>: >>> >>> Hi, >>> >>> I am trying to deploy a custom mailet and a custom matcher on my running >>> James server. >>> >>> When adding my mailet or my matcher in the mailetcontainer.xml file, I >>> have a strange error ( repeted thousand of times ). I added the >>> stacktrace as an attachement for readability. >>> >>> Here is how my code looks like : >>> >>> package com.linagora.openpaas.mailet; >>> >>> public class PostMailOnESN extends GenericMailet { >>> >>> public void init() throws MessagingException { >>> // ... >>> } >>> >>> public void service(Mail mail) throws MessagingException { >>> // ... >>> } >>> >>> public void destroy() { >>> // ... >>> } >>> } >>> >>> I added the generated jar in conf/lib directory. >>> >>> Here is the section of mailetcontainer.xml file involving this mailet : >>> >>> <mailet >>> match="com.linagora.openpaas.matcher.ESNPostmasterMailMatcher=http://127.0.0.1:8080/api/messages/email/check%esn.james.minet.net" >>> class="com.linagora.openpaas.mailet.PostMailOnESN"> >>> <esnip>127.0.0.1</esnip> >>> <port>8080</port> >>> <api>api/james/mail</api> >>> </mailet> >>> >>> Note that it works fine if I replace this mailet by : >>> >>> <mailet match="All" class="Null"/> >>> >>> And That I get the same kind of stacktraces using the following non >>> existing mailet and matcher : >>> >>> <mailet match="Al" class="Null"/> >>> >>> Or : >>> >>> <mailet match="All" class="Nul"/> >>> >>> Oh and I am running james 3.0.0-beta5, on openjdk-7-jre ( I have the >>> same problem using openjdk-6-jre ) >>> >>> My question is : >>> - have I made something wrong ? ( I have the impression >>> - have someone deployed a custom mailet successfully on James >>> 3.0.0-beta5 ? Does you have any tips ? >>> >>> Thank you by advance, >>> >>> Benoit >>> >>> >>> <stacktrace.txt> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: server-user-unsubscr...@james.apache.org >>> For additional commands, e-mail: server-user-h...@james.apache.org >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: server-user-unsubscr...@james.apache.org >> For additional commands, e-mail: server-user-h...@james.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: server-user-unsubscr...@james.apache.org > For additional commands, e-mail: server-user-h...@james.apache.org >