Exception tag is missing when Camel Java DSL is converted into XML using Hawtio.

public void configure() {
	onException(Exception.class).log("${exception.stacktrace}").logStackTrace(true)
			.handled(true);

	from("timer://foo?fixedRate=true&period=10000&repeatCount=101").routeId("test")
			.log("Hello World");
}

<route xmlns="http://camel.apache.org/schema/spring" id="test">
        <from uri="timer://foo?fixedRate=true&amp;period=10000&amp;repeatCount=101"/>
        <onException>
            <redeliveryPolicy logStackTrace="true"/>
            <log message="${exception.stacktrace}"/>
        </onException>
        <log message="Hello World"/>
    </route>

<exception>java.lang.Exception</exception>