Author: [log in to unmask] Date: Sat Apr 18 18:21:39 2015 New Revision: 2746 Log: Simple driver that looks at MCParticle collection. Modified: java/trunk/monitoring-drivers/src/main/java/org/hps/monitoring/drivers/scalars/DeadtimePlots.java Modified: java/trunk/monitoring-drivers/src/main/java/org/hps/monitoring/drivers/scalars/DeadtimePlots.java ============================================================================= --- java/trunk/monitoring-drivers/src/main/java/org/hps/monitoring/drivers/scalars/DeadtimePlots.java (original) +++ java/trunk/monitoring-drivers/src/main/java/org/hps/monitoring/drivers/scalars/DeadtimePlots.java Sat Apr 18 18:21:39 2015 @@ -78,7 +78,8 @@ } public void endOfData() { - updater.stop(); + if(updater!=null) + updater.stop(); } class DeadtimeProvider implements ValueProvider {