Program: 116520
Project: 116520
Buggy source:
private boolean doProcess(CompleteTopologyEvent event,Topology topology){
  if (TopologyServiceFilter.getInstance().isActive()) {
    for (    Service service : event.getTopology().getServices()) {
      if (TopologyServiceFilter.getInstance().serviceNameIncluded(service.getServiceName())) {
        topology.addService(service);
      }
 else {
        if (log.isDebugEnabled()) {
          log.debug(String.format("String_Node_Str",service.getServiceName()));
        }
      }
    }
  }
 else {
    topology.addServices(event.getTopology().getServices());
  }
  if (TopologyClusterFilter.getInstance().isActive()) {
    for (    Service service : topology.getServices()) {
      List<Cluster> clustersToRemove=new ArrayList<Cluster>();
      for (      Cluster cluster : service.getClusters()) {
        if (TopologyClusterFilter.getInstance().clusterIdExcluded(cluster.getClusterId())) {
          clustersToRemove.add(cluster);
        }
      }
      for (      Cluster cluster : clustersToRemove) {
        service.removeCluster(cluster);
        if (log.isDebugEnabled()) {
          log.debug(String.format("String_Node_Str",cluster.getClusterId()));
        }
      }
    }
  }
  if (TopologyMemberFilter.getInstance().isActive()) {
    for (    Service service : topology.getServices()) {
      for (      Cluster cluster : service.getClusters()) {
        List<Member> membersToRemove=new ArrayList<Member>();
        for (        Member member : cluster.getMembers()) {
          if (TopologyMemberFilter.getInstance().lbClusterIdExcluded(member.getLbClusterId())) {
            membersToRemove.add(member);
          }
        }
        for (        Member member : membersToRemove) {
          cluster.removeMember(member);
          if (log.isDebugEnabled()) {
            log.debug(String.format("String_Node_Str",member.getMemberId(),member.getLbClusterId()));
          }
        }
      }
    }
  }
  Collection<Application> applications=event.getTopology().getApplications();
  if (applications != null && !applications.isEmpty()) {
    for (    Application application : applications) {
      topology.addApplication(application);
      if (log.isDebugEnabled()) {
        log.debug("String_Node_Str" + application.getUniqueIdentifier() + "String_Node_Str");
      }
    }
  }
 else {
    if (log.isDebugEnabled()) {
      log.debug("String_Node_Str");
    }
  }
  if (log.isInfoEnabled()) {
    log.info("String_Node_Str");
  }
  topology.setInitialized(true);
  notifyEventListeners(event);
  return true;
}

Fixed version (ground truth):
private void doProcess(CompleteTopologyEvent event,Topology topology){
  if (TopologyServiceFilter.getInstance().isActive()) {
    for (    Service service : event.getTopology().getServices()) {
      if (TopologyServiceFilter.getInstance().serviceNameIncluded(service.getServiceName())) {
        topology.addService(service);
      }
 else {
        if (log.isDebugEnabled()) {
          log.debug(String.format("String_Node_Str",service.getServiceName()));
        }
      }
    }
  }
 else {
    topology.addServices(event.getTopology().getServices());
  }
  if (TopologyClusterFilter.getInstance().isActive()) {
    for (    Service service : topology.getServices()) {
      List<Cluster> clustersToRemove=new ArrayList<Cluster>();
      for (      Cluster cluster : service.getClusters()) {
        if (TopologyClusterFilter.getInstance().clusterIdExcluded(cluster.getClusterId())) {
          clustersToRemove.add(cluster);
        }
      }
      for (      Cluster cluster : clustersToRemove) {
        service.removeCluster(cluster);
        if (log.isDebugEnabled()) {
          log.debug(String.format("String_Node_Str",cluster.getClusterId()));
        }
      }
    }
  }
  if (TopologyMemberFilter.getInstance().isActive()) {
    for (    Service service : topology.getServices()) {
      for (      Cluster cluster : service.getClusters()) {
        List<Member> membersToRemove=new ArrayList<Member>();
        for (        Member member : cluster.getMembers()) {
          if (TopologyMemberFilter.getInstance().lbClusterIdExcluded(member.getLbClusterId())) {
            membersToRemove.add(member);
          }
        }
        for (        Member member : membersToRemove) {
          cluster.removeMember(member);
          if (log.isDebugEnabled()) {
            log.debug(String.format("String_Node_Str",member.getMemberId(),member.getLbClusterId()));
          }
        }
      }
    }
  }
  Collection<Application> applications=event.getTopology().getApplications();
  if (applications != null && !applications.isEmpty()) {
    for (    Application application : applications) {
      topology.addApplication(application);
      if (log.isDebugEnabled()) {
        log.debug("String_Node_Str" + application.getUniqueIdentifier() + "String_Node_Str");
      }
    }
  }
 else {
    if (log.isDebugEnabled()) {
      log.debug("String_Node_Str");
    }
  }
  if (log.isInfoEnabled()) {
    log.info("String_Node_Str");
  }
  topology.setInitialized(true);
}