Program: 115633
Project: 115633
Buggy source:
private boolean doProcess(ClusterInstanceActivatedEvent event,Topology topology){
  String serviceName=event.getServiceName();
  String clusterId=event.getClusterId();
  if (TopologyServiceFilter.apply(serviceName)) {
    return false;
  }
  if (TopologyClusterFilter.apply(clusterId)) {
    return false;
  }
  Service service=topology.getService(event.getServiceName());
  if (service == null) {
    if (log.isWarnEnabled()) {
      log.warn(String.format("String_Node_Str",event.getServiceName()));
    }
    return false;
  }
  Cluster cluster=service.getCluster(event.getClusterId());
  if (cluster == null) {
    if (log.isDebugEnabled()) {
      log.debug(String.format("String_Node_Str",event.getServiceName(),event.getClusterId()));
      return false;
    }
  }
 else {
    List<KubernetesService> kubernetesServices=event.getKubernetesServices();
    if (kubernetesServices != null) {
      cluster.setKubernetesServices(kubernetesServices);
    }
    try {
      for (      KubernetesService kubernetesService : kubernetesServices) {
        String[] publicIPs=kubernetesService.getPublicIPs();
        if ((publicIPs != null) && (publicIPs.length > 0)) {
          URL accessURL=new URL(kubernetesService.getProtocol(),publicIPs[0],kubernetesService.getPort(),"String_Node_Str");
          cluster.addAccessUrl(accessURL.toString());
        }
      }
    }
 catch (    Exception e) {
      log.error("String_Node_Str");
    }
    ClusterInstance context=cluster.getInstanceContexts(event.getInstanceId());
    if (context == null) {
      log.warn("String_Node_Str" + event.getClusterId() + "String_Node_Str"+ event.getInstanceId());
      return false;
    }
    ClusterStatus status=ClusterStatus.Active;
    if (!context.isStateTransitionValid(status)) {
      log.error("String_Node_Str" + context.getStatus() + "String_Node_Str"+ status);
    }
    context.setStatus(status);
  }
  notifyEventListeners(event);
  return true;
}

Fixed version (ground truth):
private boolean doProcess(ClusterInstanceActivatedEvent event,Topology topology){
  String serviceName=event.getServiceName();
  String clusterId=event.getClusterId();
  if (TopologyServiceFilter.apply(serviceName)) {
    return false;
  }
  if (TopologyClusterFilter.apply(clusterId)) {
    return false;
  }
  Service service=topology.getService(event.getServiceName());
  if (service == null) {
    if (log.isWarnEnabled()) {
      log.warn(String.format("String_Node_Str",event.getServiceName()));
    }
    return false;
  }
  Cluster cluster=service.getCluster(event.getClusterId());
  if (cluster == null) {
    if (log.isDebugEnabled()) {
      log.debug(String.format("String_Node_Str",event.getServiceName(),event.getClusterId()));
      return false;
    }
  }
 else {
    List<KubernetesService> kubernetesServices=event.getKubernetesServices();
    if (kubernetesServices != null) {
      cluster.setKubernetesServices(kubernetesServices);
      try {
        for (        KubernetesService kubernetesService : kubernetesServices) {
          String[] publicIPs=kubernetesService.getPublicIPs();
          if ((publicIPs != null) && (publicIPs.length > 0)) {
            URL accessURL=new URL(kubernetesService.getProtocol(),publicIPs[0],kubernetesService.getPort(),"String_Node_Str");
            cluster.addAccessUrl(accessURL.toString());
          }
        }
      }
 catch (      Exception e) {
        log.error("String_Node_Str",e);
      }
    }
    ClusterInstance context=cluster.getInstanceContexts(event.getInstanceId());
    if (context == null) {
      log.warn("String_Node_Str" + event.getClusterId() + "String_Node_Str"+ event.getInstanceId());
      return false;
    }
    ClusterStatus status=ClusterStatus.Active;
    if (!context.isStateTransitionValid(status)) {
      log.error("String_Node_Str" + context.getStatus() + "String_Node_Str"+ status);
    }
    context.setStatus(status);
  }
  notifyEventListeners(event);
  return true;
}