vtkPVSILInformation *info(vtkPVSILInformation::New());
reader->GatherInformation(info);
vtkGraph *g(info->GetSIL());
+ if(!g)//something wrong server side...
+ return ;
vtkMutableDirectedGraph *g2(vtkMutableDirectedGraph::SafeDownCast(g));
int idNames(0);
vtkAbstractArray *verticesNames(g2->GetVertexData()->GetAbstractArray("Names",idNames));