Slf4j-api

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.8.0-beta1-SNAPSHOT</version>
</dependency>

compile group: 'org.slf4j', name: 'slf4j-api', version: '1.8.0-beta1-SNAPSHOT'

compile 'org.slf4j:slf4j-api:1.8.0-beta1-SNAPSHOT'

libraryDependencies += "org.slf4j" % "slf4j-api" % "1.8.0-beta1-SNAPSHOT"

<dependency org="org.slf4j" name="slf4j-api" rev="1.8.0-beta1-SNAPSHOT"/>

@Grapes(
            @Grab(group='org.slf4j', module='slf4j-api', version='1.8.0-beta1-SNAPSHOT')
        )

[org.slf4j/slf4j-api "1.8.0-beta1-SNAPSHOT"]

'org.slf4j:slf4j-api:jar:1.8.0-beta1-SNAPSHOT'