import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class MyClass { private static final Log log = LogFactory.getLog(MyClass.class); public void myMethod() { if (log.isDebugEnabled()) { log.debug("Debug message here"); } // rest of method code } }In this code, we first import the "Log" and "LogFactory" classes from the "org.apache.commons.logging" package. We then create a static logger for our class using the "LogFactory.getLog" method. Finally, we use "isDebugEnabled" to check if the logging level is set to "DEBUG", and if so, we log a message using "log.debug". Overall, "org.apache.commons.logging" is a useful logging library for Java projects, and "isDebugEnabled" is just one of the many features it provides.