[CAMEL-11967] Restlet binding should not create jaxb marshaller when binding mode is set to json

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.20.0
• Fix Version/s: 2.19.4, 2.20.1, 2.21.0
• Component/s: camel-core, rest
• Patch Info: Patch Available
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: john
• Created: 30/Oct/17 18:29
• Updated: 31/Oct/17 12:55
• Resolved: 31/Oct/17 12:55

Description

The following rest endpoint fails with jaxb exception:

.get("/getAllEndpoints").bindingMode(RestBindingMode.json).outType(Map.class)
        			.to("bean:IRWebServiceRegistry?method=getAllProperties");

Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.util.Map is an interface, and JAXB can't handle interfaces.

This is fine if i wanted to marshall to xml but i specifically set binding mode to json.

Fix:
Change this line:
https://github.com/apache/camel/blob/36039c0563dfe9e04527c5eca1058e66326054ee/camel-core/src/main/java/org/apache/camel/model/rest/RestBindingDefinition.java#L174

To:
if (jaxb != null && (mode.contains("xml") || mode.equals(RestBindingMode.auto))) {

May want to consider doing the same for the json section at line 130