From 317d8e25b6fa16058ae1435a37209f57f742185a Mon Sep 17 00:00:00 2001
From: Konstantin <konstantin.androsov@gmail.com>
Date: Sat, 6 Jul 2024 07:46:13 +0200
Subject: [PATCH] PATLeptonTimeLifeInfoProducer: do not throw exception if fit
 fails

---
 .../PatAlgos/plugins/PATLeptonTimeLifeInfoProducer.cc | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/PhysicsTools/PatAlgos/plugins/PATLeptonTimeLifeInfoProducer.cc b/PhysicsTools/PatAlgos/plugins/PATLeptonTimeLifeInfoProducer.cc
index 978aa180c3252..d8ccc96042dbc 100644
--- a/PhysicsTools/PatAlgos/plugins/PATLeptonTimeLifeInfoProducer.cc
+++ b/PhysicsTools/PatAlgos/plugins/PATLeptonTimeLifeInfoProducer.cc
@@ -53,9 +53,14 @@ class PATLeptonTimeLifeInfoProducer : public edm::stream::EDProducer<> {
   static bool fitVertex(const std::vector<reco::TransientTrack>& transTrk, TransientVertex& transVtx) {
     if (transTrk.size() < 2)
       return false;
-    KalmanVertexFitter kvf(true);
-    transVtx = kvf.vertex(transTrk);
-    return transVtx.hasRefittedTracks() && transVtx.refittedTracks().size() == transTrk.size();
+    try {
+      KalmanVertexFitter kvf(true);
+      transVtx = kvf.vertex(transTrk);
+      return transVtx.hasRefittedTracks() && transVtx.refittedTracks().size() == transTrk.size();
+    } catch (VertexException& e) {
+      edm::LogWarning("PATLeptonTimeLifeInfoProducer") << " fitVertex failed: " << e.what();
+      return false;
+    }
   }
 
   //--- configuration parameters