Question

I’m using SLF4J for the first time in my Maven project, but I can’t get it to output anything (its creators evidently don’t subscribe to the “useful default behavior” philosophy).

I added the following to my pom.xml:

<dependency>
    <groupId>com.googlecode.sli4j</groupId>
    <artifactId>sli4j-slf4j-simple</artifactId>
    <version>2.0</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

And I’m using it like this:

final Logger logger = LoggerFactory.getLogger(UdpRemoteConnection.class);

      ...

logger.error("test error");

Right now I don’t need anything fancy, I just need it to log to the console. How do I enable this?

Answer 1

It seems that you are using Sli4j instead of Slf4j.
Try to use Slf4j directly:

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
</dependency>


<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-simple</artifactId>
    <version>${slf4j.version}</version>
</dependency>

(I use 1.5.11 as slg4j.version, but latest available is 1.6.1)