The following comment has been added to this issue: Author: Hes Siemelink Created: Thu, 19 Aug 2004 4:10 AM Body: Messages do get lost when this occurs. Looking at the exception handling in RemoteDelivery.run() it makes sense, but I think it is unwanted behavior.
I think the best way to solve this is to explicitly check for null: In RemoteDelivery.deliver(), add the following while ( targetServers.hasNext()) { try { HostAddress outgoingMailServer = (HostAddress) targetServers.next(); // line 409: + if (outgoingMailServer == null) { + continue; + } StringBuffer logMessageBuffer = new StringBuffer(256) .append("Attempting delivery of ") .append(mail.getName()) .append(" to host ") .append(outgoingMailServer.getHostName()) .append(" at ") .append(outgoingMailServer.getHost()) .append(" to addresses ") .append(Arrays.asList(addr)); log(logMessageBuffer.toString()); (Sorry, don't have time now to setup cvs/diff/patch) --------------------------------------------------------------------- View this comment: http://issues.apache.org/jira/browse/JAMES-318?page=comments#action_37331 --------------------------------------------------------------------- View the issue: http://issues.apache.org/jira/browse/JAMES-318 Here is an overview of the issue: --------------------------------------------------------------------- Key: JAMES-318 Summary: java.lang.NullPointerException when host is unknown Type: Bug Status: Unassigned Priority: Major Project: James Components: Remote Delivery Versions: 2.2.0 Assignee: Reporter: Hes Siemelink Created: Wed, 18 Aug 2004 5:44 AM Updated: Thu, 19 Aug 2004 4:10 AM Description: I encountered the following NullPointerException: 18/08/04 14:29:59 INFO James.Mailet : RemoteDelivery: Unknown gateway host: unknown host 18/08/04 14:29:59 INFO James.Mailet : RemoteDelivery: This could be a DNS server error or configuration error. 18/08/04 14:29:59 INFO James.Mailet : RemoteDelivery: Exception caught in RemoteDelivery.run() java.lang.NullPointerException at org.apache.james.transport.mailets.RemoteDelivery.deliver(RemoteDelivery.java:409) at org.apache.james.transport.mailets.RemoteDelivery.run(RemoteDelivery.java:912) at java.lang.Thread.run(Thread.java:534) This is caused by logging information about a HostAddress that happens to be null. The HostAddress is null because I had a misconfiguration in my config.xml: a gateway server that could not be found. I fixed the issue for myself by entering the correct host name. Still, NullPointerExceptions are a bad sign. Also, the message seems to disappear from the queue. I can't find it in the spool directory and there is no attempt of delivery after a restart. In other words, I seem to observe that a message gets lost when this occurs. --------------------------------------------------------------------- JIRA INFORMATION: This message is automatically generated by JIRA. If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa If you want more information on JIRA, or have a bug to report see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]