[CAMEL-8871] null body after exception from transform method

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.15.2
• Fix Version/s: 2.15.3, 2.16.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Hans Orbaan
• Created: 15/Jun/15 08:19
• Updated: 15/Jun/15 09:31
• Resolved: 15/Jun/15 09:31

Description

When an exception is thrown from a transform method I lose the content of the message body. This behaviour is unexpected because it does not happen when an exception is thrown from a bean call.

.bean(ErrorBean.class, ErrorBean.METHOD)
Vs.
.transform().method(ErrorBean.class, ErrorBean.METHOD)

I have a testcase that I will try to get attached but here are the routes:

if ("testTransformExceptionToErrorRoute".equals(getTestMethodName())) {
                    from(START)
                    .routeId("exception.test.transform")
                    .transform().method(ErrorBean.class, ErrorBean.METHOD)
                    .to(END);
                } else {
                    from(START)
                    .routeId("exception.test.bean")
                    .bean(ErrorBean.class, ErrorBean.METHOD)
                    .to(END);
                }

    public static class ErrorBean {
        private static final String METHOD = "throwException";
        public static void throwException(Exchange exchange) {
            String body = exchange.getIn().getBody(String.class);
            Assertions.assertThat(body).isEqualTo(BODY);
            throw new NullPointerException();
        }
    }