ClassCastException on deserialization of spring jms GenericMessage

Hi there,

I already put some effort in debugging the following exception:

Caused by: java.lang.ClassCastException: org.springframework.messaging.support.GenericMessage cannot be cast to com.fasterxml.jackson.databind.JsonNode
	at com.fasterxml.jackson.databind.deser.std.StdNodeBasedDeserializer.deserializeWithType(StdNodeBasedDeserializer.java:84)
	at com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:68)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3042)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.convertFromTextMessage(MappingJackson2MessageConverter.java:385)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.convertToObject(MappingJackson2MessageConverter.java:363)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.fromMessage(MappingJackson2MessageConverter.java:232)
	at org.springframework.jms.core.JmsTemplate.doConvertFromMessage(JmsTemplate.java:859)
	at org.springframework.jms.core.JmsTemplate.receiveAndConvert(JmsTemplate.java:817)
	at org.springframework.integration.jms.PollableJmsChannel.receive(PollableJmsChannel.java:110)
	at org.springframework.integration.jms.PollableJmsChannel.receive(PollableJmsChannel.java:83)
	at org.springframework.integration.endpoint.PollingConsumer.receiveMessage(PollingConsumer.java:203)
	at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:360)
	at org.springframework.integration.endpoint.AbstractPollingEndpoint.pollForMessage(AbstractPollingEndpoint.java:329)
	... 14 more

Context: I am using spring integration with a JMS queue. I can see the message correctly been written to the database and interestingly the data is also correctly deserialized until https://github.com/FasterXML/jackson-databind/blob/master/src/main/java/com/fasterxml/jackson/databind/deser/std/StdNodeBasedDeserializer.java#L77 where it results in the classCastException shown above.

I am using the following mapper configuration:

@Bean
  public MessageConverter jacksonJmsMessageConverter() {
    MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
    converter.setTargetType(MessageType.TEXT);
    converter.setTypeIdPropertyName("_type");
    ObjectMapper objectMapper = JacksonJsonUtils.messagingAwareMapper("com.github.maybeec");
    // objectMapper.enable(DeserializationFeature.UNWRAP_ROOT_VALUE);
    converter.setObjectMapper(objectMapper);
    return converter;
  }

@Bean(name = JMSEmailNotificationConsumer.EMAIL_QUEUE)
  public MessageChannel emailQueue(QueueConnectionFactory jmsConnectionFactory) {

    return Jms.pollableChannel(JMSEmailNotificationConsumer.EMAIL_QUEUE, jmsConnectionFactory)
        .datatype(JMSEmailTo.class).messageConverter(jacksonMessageConverter())
        .jmsMessageConverter(jacksonJmsMessageConverter()).datatype(JMSEmailTo.class).deliveryPersistent(true)
        .destination(JMSEmailNotificationConsumer.EMAIL_QUEUE).get();
  }

@Bean
  public JmsTemplate jmsTemplate(QueueConnectionFactory jmsConnectionFactory) throws Exception {
    JmsTemplate jmsTemplate = new JmsTemplate();
    jmsTemplate.setConnectionFactory(jmsConnectionFactory);
    jmsTemplate.setMessageConverter(jacksonJmsMessageConverter());
    jmsTemplate.setPubSubDomain(false);
    jmsTemplate.setDeliveryPersistent(true);
    return jmsTemplate;
  }

Product Versions: I am using Spring Integration 5.1.6.RELEASE with the managed version of spring of jackson-databind: 2.9.9.

Trials so far:

• I tried upgrading to the latest jackson-databind 2.10.1, which did not made any difference
• I tried enabling UNWRAP_ROOT_VALUE feature without any success. In that case I got

Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Root name '@class' does not match expected ('GenericMessage') for type [simple type, class org.springframework.messaging.support.GenericMessage]
 at [Source: (String)"{"@class":"org.springframework.messaging.support.GenericMessage","payload":{"@class":"com.kn.fn.fia.emailadapter.logic.impl.jmsadapter.to.JMSEmailTo","from":"[e-mail]","to":"[e-mail]","cc":"[e-mail]","bcc":null,"replyTo":"[e-mail]","sentDate":"Thu Nov 21 22:34:58 CET 2019","subject":"                    Quote 111 from SINGAPORE to tokyo \r\n","text":"<!DOCTYPE html> \r\n     <html> \r\n      <head> \r\n      <sty"[truncated 6974 chars]; line: 1, column: 2]
	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59)
	at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1356)
	at com.fasterxml.jackson.databind.ObjectMapper._unwrapAndDeserialize(ObjectMapper.java:4087)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4011)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3042)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.convertFromTextMessage(MappingJackson2MessageConverter.java:385)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.convertToObject(MappingJackson2MessageConverter.java:363)
	at org.springframework.jms.support.converter.MappingJackson2MessageConverter.fromMessage(MappingJackson2MessageConverter.java:232)
	... 21 more

which is also not clear to me why the simple type is being compared with the full qualified type.

Any ideas?

[cowtowncoder]

Yeah I am not going to do that: I see nothing to really suggest specific problem in Jackson. What is needed is piece of code isolate out of Spring; without this my time is better spent with other issues.

[cxl98]

这个问题我也遇到了，加个参数就行了