diff -u -r1.4 -r1.5
--- NonTrivialPFA.java	12 Apr 2007 22:40:25 -0000	1.4
+++ NonTrivialPFA.java	20 Apr 2007 22:46:15 -0000	1.5
@@ -852,7 +852,7 @@

 
     protected void addMerger(String[] inputParticleLists, String outputParticleList)
     {

-	ListAddDriver<ReconstructedParticle> mergeParticles = new ListAddDriver<ReconstructedParticle>();

+	ListAddDriver<ReconstructedParticle> mergeParticles = new ListAddDriver<ReconstructedParticle>(ReconstructedParticle.class);

 	for (String str : inputParticleLists) {
 	    mergeParticles.addInputList(str);
 	}