import java.util.TreeMap;
import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
-import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp;
-import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
-import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest;
import org.eclipse.linuxtools.tmf.core.request.TmfDataRequest;
import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest;
import org.eclipse.linuxtools.tmf.core.signal.TmfSignal;
import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager;
import org.eclipse.linuxtools.tmf.core.signal.TmfStatsUpdatedSignal;
+import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp;
+import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange;
+import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp;
import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
/**