Henrik created CAMEL-25086:
------------------------------
Summary: camel-platform-http-starter: fails to start outside a
servlet web application (ServerProperties/WebMvcProperties)
Key: CAMEL-25086
URL: https://issues.apache.org/jira/browse/CAMEL-25086
Project: Camel
Issue Type: Bug
Components: camel-platform-http, camel-spring-boot
Affects Versions: 4.22.1, 4.22.0
Reporter: Henrik
Fix For: 4.22.2, 4.23.0
h3. Summary
Since 4.22.0 an application context that is not a servlet web application fails
to start when {{camel-platform-http-starter}} is on the classpath:
{noformat}
Error creating bean with name 'platform-http-engine' ... Unsatisfied dependency
expressed through method
'springBootPlatformHttpEngine' parameter 1: No qualifying bean of type
'org.springframework.boot.web.server.autoconfigure.ServerProperties' available
{noformat}
and, from {{SpringBootPlatformWebMvcConfiguration}}, the same for
{{org.springframework.boot.webmvc.autoconfigure.WebMvcProperties}}.
The common case is {{@SpringBootTest(webEnvironment = WebEnvironment.NONE)}} on
an application with platform-http or Rest DSL routes, which worked on 4.21.0.
h3. Cause
"camel-platform-http-starter: align auto-configuration with Spring Boot 4
idioms" (595c737) made the engine inject {{ServerProperties}} instead of
reading {{server.port}}, and stopped enabling {{WebMvcProperties}} on the
grounds that the owning auto-configuration does. Spring Boot only registers
both beans in a servlet web application, so neither exists in a non-web context.
{{@ConditionalOnWebApplication}} is not a fix: without an engine bean
{{PlatformHttpComponent.getOrCreateEngine}} fails to resolve one, so the routes
fail to start instead.
h3. Proposed fix
Inject both as {{ObjectProvider}}. The engine port uses {{ServerProperties}}
when present, otherwise the {{server.port}} property, otherwise 8080 (the 4.21
behaviour). A missing {{WebMvcProperties}} means no async request timeout was
configured.
h3. Found in
On the 4.21.0 -> 4.22.1 upgrade: every {{WebEnvironment.NONE}} test context
failed to start.
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