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https://issues.apache.org/jira/browse/CAMEL-12520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483719#comment-16483719
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Steve Storck commented on CAMEL-12520:
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I have also thought of another possible solution. If an exchange is passed in
with this method, the constituent parts of the exchange could be set on the
{{FluentProducerTemplate}} – the properties, headers, body, etc, rather than
setting the {{Exchange}} instance itself on the template. I realize that it
would not be the same exchange, but I wonder if it will really matter...
> FluentProducerTemplate.withExchange() does not seem to send exchange
> --------------------------------------------------------------------
>
> Key: CAMEL-12520
> URL: https://issues.apache.org/jira/browse/CAMEL-12520
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.19.2, 2.19.3, 2.19.4, 2.19.5, 2.20.0, 2.20.1, 2.20.2,
> 2.20.3, 2.21.0
> Environment: Linux and Java 8 or Java 9
> Reporter: Steve Storck
> Assignee: Luca Burgazzoli
> Priority: Minor
> Fix For: 2.22.0
>
> Attachments: MessageApplication.java
>
>
> When I use the following simple but complete code example:
> {code:java}
> public static void main(String[] args) throws Exception {
> CamelContext camelContext = new DefaultCamelContext();
> camelContext.start();
> camelContext.addRoutes(new RouteBuilder() {
> @Override
> public void configure() {
> from("direct-vm:start").process(exchange -> {
> String incoming = exchange.getIn().getBody(String.class);
> exchange.getIn().setBody("Message received: " + incoming,
> String.class);
> });
> }
> });
> Exchange exchange = ExchangeBuilder.anExchange(camelContext)
> .withBody("Hello!")
> .withPattern(ExchangePattern.InOut)
> .build();
> System.out.println(
> camelContext.createFluentProducerTemplate()
> .withExchange(exchange)
> .to("direct-vm:start")
> .request(String.class)
> );
> }{code}
> The message body appears to be missing, as indicated in the program output:
> {code:java}
> Message received: null{code}
> I have tried this with java 1.8 and 1.9, and with camel 2.19.2 and 2.21.1,
> and both camel versions exhibit the same behavior when run with both java
> versions.
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