Colin Harms created CAMEL-9656:
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Summary: Using SpringBoot HealthEndpoint bean throws
AmbiguousMethodCallException
Key: CAMEL-9656
URL: https://issues.apache.org/jira/browse/CAMEL-9656
Project: Camel
Issue Type: Bug
Components: camel-spring-boot
Affects Versions: 2.16.2
Reporter: Colin Harms
Priority: Minor
I'm trying to re-use the Springboot Actuator HealthEndpoint and InfoEndpoint
beans and exposing them via rest:
{code}
@Autowired
HealthEndpoint healthEndpoint;
...
//build the route
from("rest:get:health").routeId("REST-healthcheck").bean(healthEndpoint,
"invoke");
{code}
However when that gets invoked, it throws a AmbiguousMethodCallException and
its other candidate for invoke is on the abstract class that HealthEndpoint is
extending
It looks like the issue is here:
https://github.com/apache/camel/blob/master/camel-core/src/main/java/org/apache/camel/component/bean/BeanInfo.java#L1020
In this case HealthEndpoint extends AbstractHealthEndpoint, which is abstract,
but invoke() is declared on the Endpoint interface. So this logic:
{code} !isFromInterface && Modifier.isAbstract(info.getMethod().getModifiers())
{code}
Will not evaluate to true, and the abstract method will remain a candidate.
Here are the sources for the Endpoint/HealthEndpoint/AbstractEndpoint classes:
https://github.com/spring-projects/spring-boot/blob/master/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Endpoint.java#L56
https://github.com/spring-projects/spring-boot/blob/master/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/AbstractEndpoint.java#L32
https://github.com/spring-projects/spring-boot/blob/master/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/HealthEndpoint.java#L36
It seems this is intentional, due to the "if the class is an interface then
keep the method" comment in BeanInfo.
I'm curious as to why that is.
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