import java.util.concurrent.atomic.AtomicLong;
import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.spi.LoggingEvent;
import org.lttng.ust.agent.ILttngAgent;
import org.lttng.ust.agent.ILttngHandler;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.spi.LoggingEvent;
import org.lttng.ust.agent.ILttngAgent;
import org.lttng.ust.agent.ILttngHandler;