Re: [logback-user] org.slf4j.impl.StaticLoggerBinder.SINGLETON

25 Oct 2011

      FYI, given Maven's transitive dependency rules, writing:

		<dependency>
		  <groupId>ch.qos.logback</groupId>
		  <artifactId>logback-classic</artifactId>
		  <version>0.9.30</version>
		</dependency>

is equivalent to writing:

		<dependency>
		  <groupId>org.slf4j</groupId>
		  <artifactId>slf4j-api</artifactId>
		  <version>1.6.3</version>
		</dependency>
		<dependency>
		  <groupId>ch.qos.logback</groupId>
		  <artifactId>logback-core</artifactId>
		  <version>0.9.30</version>
		</dependency>
		<dependency>
		  <groupId>ch.qos.logback</groupId>
		  <artifactId>logback-classic</artifactId>
		  <version>0.9.30</version>
		</dependency>

As for your actual question, you most probably have an earlier version
of slf4j on your class path. Check your dependency tree with the
command 'mvn dependency:tree'. Also note that Weld bundles SLF4J
within itself.

--
Ceki
http://twitter.com/#!/ceki

On 25/10/2011 12:34 PM, stlecho wrote:
...
I'm using the underneath listed dependencies and I'm receiving the same error
message: "java.lang.reflect.InvocationTargetException:
java.lang.IllegalAccessError: tried to access field
org.slf4j.impl.StaticLoggerBinder.SINGLETON from class
org.slf4j.LoggerFactory".
What could I do to correct this ?
<dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.6.3</version>
      </dependency>
      <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-core</artifactId>
      <version>0.9.30</version>
      </dependency>
      <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>0.9.30</version>
      </dependency>