lcsim/src/org/lcsim/contrib/uiowa

diff -u -r1.3 -r1.4
--- FlushReconstructedParticlesDriver.java	8 Mar 2008 20:49:23 -0000	1.3
+++ FlushReconstructedParticlesDriver.java	5 Jun 2008 21:59:13 -0000	1.4
@@ -44,6 +44,11 @@

 	for (CalorimeterHit hit : event.get(CalorimeterHit.class, "EcalEndcapHits")) { hitMap.put(hit.getCellID(), hit); }
 	for (CalorimeterHit hit : event.get(CalorimeterHit.class, "HcalEndcapHits")) { hitMap.put(hit.getCellID(), hit); }
 

+	if (!event.hasCollection(ReconstructedParticle.class, m_inputParticleListName)) {
+	    // Collection is missing this event
+	    return;
+	}
+

 	List<ReconstructedParticle> inputList = event.get(ReconstructedParticle.class, m_inputParticleListName);
 	Vector<ReconstructedParticle> outputList = new Vector<ReconstructedParticle>();
 	Vector<Cluster> outputClusterList = new Vector<Cluster>();