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https://issues.apache.org/jira/browse/CAMEL-11756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161635#comment-16161635
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Claus Ibsen commented on CAMEL-11756:
-------------------------------------
Apache Camel does not use commons-logging, we use slf4j-api as the logging
facade.
However some 3rd party frameworks use commons-logging.
For example just now I am building and doing some tests with all the
camel-starter component (eg for spring boot) with Spring Boot 2.
And it may be that Hystrix library uses commons-logging somewhere, as the unit
test fails with
{code}
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running
org.apache.camel.component.hystrix.processor.HystrixHierarchicalConfigurationTest
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.011 sec <<<
FAILURE! - in
org.apache.camel.component.hystrix.processor.HystrixHierarchicalConfigurationTest
testConfiguration(org.apache.camel.component.hystrix.processor.HystrixHierarchicalConfigurationTest)
Time elapsed: 0.004 sec <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'servletRegistrationBean' defined in class path
resource
[org/apache/camel/component/hystrix/springboot/HystrixMappingAutoConfiguration.class]:
Bean instantiation via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to instantiate
[org.springframework.boot.web.servlet.ServletRegistrationBean]: Factory method
'servletRegistrationBean' threw exception; nested exception is
java.lang.NoClassDefFoundError: org/apache/commons/logging/impl/NoOpLog
Caused by: org.springframework.beans.BeanInstantiationException: Failed to
instantiate [org.springframework.boot.web.servlet.ServletRegistrationBean]:
Factory method 'servletRegistrationBean' threw exception; nested exception is
java.lang.NoClassDefFoundError: org/apache/commons/logging/impl/NoOpLog
Caused by: java.lang.NoClassDefFoundError:
org/apache/commons/logging/impl/NoOpLog
Caused by: java.lang.ClassNotFoundException:
org.apache.commons.logging.impl.NoOpLog
{code}
But when I add commons-logging as test scope the test passes
{code}
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<scope>test</scope>
</dependency>
{code}
> camel-spring-boot2 - Create experimental spring boot 2 component
> ----------------------------------------------------------------
>
> Key: CAMEL-11756
> URL: https://issues.apache.org/jira/browse/CAMEL-11756
> Project: Camel
> Issue Type: Task
> Components: camel-spring-boot
> Reporter: Claus Ibsen
> Assignee: Claus Ibsen
> Fix For: 2.20.0
>
>
> We should try get started with the migration effort for getting Camel running
> on Spring Boot 2.0.x.
> There may be issues with the starter component as Spring Boot guys changed
> stuff how auto configuration and setting properties works. So we may need to
> have some kind of interface in camel-spring-boot and camel-spring-boot2 where
> we can have different implementation that the -starter can use.
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