[slf4j-user] slf4j with logback?

[Ole Ersoy]

Hi,

I think the solution is to just include the logback-0.9.9 dependency version, like this:

<!--
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<type>jar</type>
			<version>1.6.2</version>
		</dependency>
  -->
  
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<type>jar</type>
			<version>0.9.9</version>
		</dependency>

Now I get the following transitive dependencies:

[INFO] +- ch.qos.logback:logback-classic:jar:0.9.9:compile
[INFO] |  +- ch.qos.logback:logback-core:jar:0.9.9:compile
[INFO] |  \- org.slf4j:slf4j-api:jar:1.5.0:compile

This seems contradictory to what the "Baby Steps" in the user manual has though:
http://logback.qos.ch/manual/introduction.html

The baby steps indicate that we should be running with slf4j 1.6.2.  Thoughts?

Cheers,
- Ole



On 10/06/2011 09:11 PM, Ole Ersoy wrote:
> Hi,
>
> I'm attempting to use slf4j with logback. I see the following when I
> start tomcat:
>
> SLF4J: slf4j-api 1.6.x (or later) is incompatible with this binding.
> SLF4J: Your binding is version 1.5.5 or earlier.
> SLF4J: Upgrade your binding to version 1.6.x. or 2.0.x
>
> I'm using the following version of slf4j and logback:
>
> [INFO] +- org.slf4j:slf4j-api:jar:1.6.2:compile
> [INFO] +- ch.qos.logback:logback-classic:jar:0.9.9:compile
> [INFO] | \- ch.qos.logback:logback-core:jar:0.9.9:compile
>
> I also get the exception pasted at the bottom of this email. I read up
> on it and hibernate, ran mvn dependency:tree, and looked for other slf4j
> versions. I did not find any. I do have a dependency on JCL though. Any
> ideas on what the problem could be?
>
> TIA,
> - Ole
>
> org.springframework.beans.factory.BeanCreationException: Error creating
> bean with name
> 'org.springframework.validation.beanvalidation.LocalValidatorFactoryBean#0':
> Invocation of init method failed; nested exception is
> java.lang.NoSuchMethodError:
> org.slf4j.impl.StaticLoggerBinder.getSingleton()Lorg/slf4j/impl/StaticLoggerBinder;
>
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
>