org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class MyComponent { protected static Log log = LogFactory.getLog("my.component"); // Called once at startup time public void start() { ... log.info("MyComponent started"); ... } // Called once at shutdown time public void stop() { ... log.info("MyComponent stopped"); ... } // Called repeatedly to process a particular argument value // which you want logged if debugging is enabled public void process(String value) { ... // Do the string...