@Retention(SOURCE)
@Target(TYPE)
public @interface Slf4j

Causes lombok to generate a logger field.

Complete documentation is found at the project lombok features page for lombok log annotations.

Example:

 @Slf4j
 public class LogExample {
 }
 

will generate:

 public class LogExample {
     private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(LogExample.class);
 }
 

This annotation is valid for classes and enumerations.