PVS-Studio warning V595 for Geant4

G4HadFinalState* G4NeutronRadCapture::ApplyYourself(
  const G4HadProjectile& aTrack, G4Nucleus& theNucleus)
{
  ....
  if (verboseLevel > 1) {
    G4cout << "Gamma 4-mom: " << lv2 << "   "
     << theDef->GetParticleName() << "   " << lv1 << G4endl;
  }
  if(theDef) {
    theParticleChange.AddSecondary(
      new G4DynamicParticle(theDef, lv1));
  }
  ....
}

This suspicious code was found in Geant4 project by PVS-Studio static code analyzer.
Warning message is:
V595 The 'theDef' pointer was utilized before it was verified against nullptr. Check lines: 123, 125. G4hadronic_deex_photon_evaporation g4neutronradcapture.cc 123

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