Hi Charles, I'm not sure if I can help you out, but a couple of days ago I had an error with sending multiple REST requests to a remote server. I aggregated the responses values of each request in a complicated Map of Map of Maps structure that resided in the Camel header. After a couple of requests, the http handshake threw an exception. After some debugging I figured out: Camel uses the complete Camel Header to setup the http header. So the toString() result of my Map of Map of Maps went into the http request as a header, and that grew too large. What helped me out was to implement a custom headerFilterStrategy in which I managed to keep all of my custom header values out of the way.
Maybe this will help you... Regards, Christian -----Ursprüngliche Nachricht----- Von: Charles Berger [mailto:charlesb.yesm...@googlemail.com] Gesendet: Freitag, 5. Januar 2018 13:30 An: users@camel.apache.org Betreff: Re: Error sending email from Camel application The route is taking properties from a POJO and building up a message to use to send an email. I add the from, to & subject headers in the route which are just string values. The message body is created using a Velocity template which extracts some values from the POJO. I included some tracers in the route and here is the info that is logged by Camel immediately before calling the SMTP endpoint (I've anonymised some of the data): 2018-01-05 11:42:09,265 [] org.apache.camel.processor.interceptor.Tracer INFO - ID-iusa16025-local-1515152339856-0-11 >>> (emailNotifications) log[body] --> smtp://localhost <<< Pattern:InOnly, Headers:{breadcrumbId=ID-iusa16025-local-1515152339856-0-11, Content-Type=application/json, downloadSuccessful=false, from=nore...@xxx.com, JMSCorrelationID=null, JMSCorrelationIDAsBytes=null, JMSDeliveryMode=2, JMSDestination=queue://emailQueue, JMSExpiration=0, JMSMessageID=ID:iusa16025.local-64140-1515152341226-7:1:2:1:1, JMSPriority=4, JMSRedelivered=false, JMSReplyTo=null, JMSTimestamp=1515152529152, JMSType=null, JMSXGroupID=null, JMSXUserID=null, subject=EDM Image Manager Alert, to=x...@yyy.com}, BodyType:String, Body:Hi, Image https://i.xxx.com/zzz.png for template Sample Template failed to upload to the CDN. XXX Image Manager team. The error message logged is this: 2018-01-05 11:42:09,312 [] org.apache.camel.processor.DefaultErrorHandler ERROR - Failed delivery for (MessageId: ID-iusa16025-local-1515152339856-0-13 on ExchangeId: ID-iusa16025-local-1515152339856-0-11). Exhausted after delivery attempt: 1 caught: org.apache.camel.TypeConversionException: Error during type conversion from type: java.lang.String to the required type: java.lang.String with value queue://emailQueue due com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class java.util.Vector$1 and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: org.apache.activemq.command.ActiveMQQueue["reference"]->javax.naming.Reference["all"]) Message History --------------------------------------------------------------------------------------------------------------------------------------- RouteId ProcessorId Processor Elapsed (ms) [emailNotifications] [emailNotifications] [activemq://emailQueue ] [ 153] [emailNotifications] [convertBodyTo4 ] [convertBodyTo[com.yesmail.edmimagebridge.model.SingleImageModel] ] [ 2] [emailNotifications] [setHeader1 ] [setHeader[subject] ] [ 0] [emailNotifications] [setHeader2 ] [setHeader[to] ] [ 4] [emailNotifications] [setHeader3 ] [setHeader[from] ] [ 0] [emailNotifications] [to9 ] [velocity:errorEmailBody.vm ] [ 101] [emailNotifications] [log10 ] [log ] [ 0] [emailNotifications] [to10 ] [smtp://localhost ] [ 46] Stacktrace --------------------------------------------------------------------------------------------------------------------------------------- org.apache.camel.TypeConversionException: Error during type conversion from type: java.lang.String to the required type: java.lang.String with value queue://emailQueue due com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class java.util.Vector$1 and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: org.apache.activemq.command.ActiveMQQueue["reference"]->javax.naming.Reference["all"]) The message suggests that I should disable SerializationFeature.FAIL_ON_EMPTY_BEANS but I'm not sure how to achieve that. I'm researching that just now and I was looking at doing something like this: JacksonDataFormat df = new JacksonDataFormat(java.util.Vector.class); df.disableFeature(SerializationFeature.FAIL_ON_EMPTY_BEANS); in beforeStart method of my CamelContextLifecycle class. ---------------------------------------------------------------- innogy SE Vorsitzender des Aufsichtsrates: Dr. Erhard Schipporeit Vorstand: Uwe Tigges (Vorsitzender), Dr. Hans Buenting, Dr. Bernhard Guenther, Martin Herrmann, Hildegard Mueller Sitz der Gesellschaft: Essen, Eingetragen beim Amtsgericht Essen, Handelsregister-Nr. HRB 27091, USt-IdNr. DE304171711
