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In case the version of "camel-spring-boot-dependencies" is set to v3.1.0 the program crahes with the following error message:

Caused by: java.lang.IllegalArgumentException: connectionFactory must be specified
	at org.apache.camel.util.ObjectHelper.notNull(ObjectHelper.java:152) ~[camel-util-3.1.0.jar:3.1.0]
...

The same error occured with the version v3.0.0 in case an endpoint is declared. So e.g. adding the following line just before the routes definitions:

Endpoint endpoint = endpoint("jms:queue:HELLO.WORLD");

will cause the exception:

Caused by: java.lang.IllegalArgumentException: connectionFactory must be specified
at org.apache.camel.util.ObjectHelper.notNull(ObjectHelper.java:152) ~[camel-util-3.0.0.jar:3.0.0]

Hi I have been looking at your sample codes to learn Camel, which is a lot of help. When I tried to run your code using 3.7.7 (LTS Latest version) it still could work. But when I go all the way to 3.10.0, whilst the application can start, I am getting the following warnings:

2022-02-24 18:26:33.119 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.spring.converter.ResourceConverterLoader 2022-02-24 18:26:33.125 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.converter.CamelBaseBulkConverterLoader 2022-02-24 18:26:33.126 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.component.file.GenericFileConverterLoader 2022-02-24 18:26:33.134 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.converter.jaxp.CamelXmlJaxpBulkConverterLoader 2022-02-24 18:26:33.136 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.converter.stream.StreamCacheBulkConverterLoader 2022-02-24 18:26:33.138 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.http.common.HttpConverterLoader 2022-02-24 18:26:33.145 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.attachment.AttachmentConverterLoader 2022-02-24 18:26:33.151 WARN 35076 --- [ main] o.a.c.i.e.DefaultCamelBeanPostProcessor : No CamelContext defined yet so cannot inject into bean: org.apache.camel.component.jackson.converter.JacksonTypeConvertersLoader

After that when the request is sent via Postman, instead of Hello World I will be getting

{ "timestamp": "2022-02-24T10:28:13.292+00:00", "status": 404, "error": "Not Found", "message": "", "path": "/services/api/" }

Update: Once updated to 3.11.0, the warning disappears but I am still getting a 404.

Still trying to find the reason why.

Where this serviceClass=com.cleverbuilder.bookservice.BookService came from please explain i am unable to understand this.