Program: 116545
Project: 116545
Buggy source:
public static void handleApplicationDeployed(Application application,Set<ApplicationClusterContext> applicationClusterContexts,Set<MetaDataHolder> metaDataHolders){
  Topology topology=TopologyManager.getTopology();
  try {
    TopologyManager.acquireWriteLock();
    if (topology.applicationExists(application.getId())) {
      log.warn("String_Node_Str" + application.getId() + "String_Node_Str");
      return;
    }
    List<Cluster> clusters=new ArrayList<Cluster>();
    for (    ApplicationClusterContext applicationClusterContext : applicationClusterContexts) {
      Cluster cluster=new Cluster(applicationClusterContext.getCartridgeType(),applicationClusterContext.getClusterId(),applicationClusterContext.getDeploymentPolicyName(),applicationClusterContext.getAutoscalePolicyName());
      cluster.setStatus(Status.Created);
      cluster.addHostName(applicationClusterContext.getHostName());
      cluster.setTenantRange(applicationClusterContext.getTenantRange());
      clusters.add(cluster);
      Service service=topology.getService(applicationClusterContext.getCartridgeType());
      if (service != null) {
        service.addCluster(cluster);
        log.info("String_Node_Str" + cluster.toString() + "String_Node_Str"+ application.getId());
      }
 else {
        log.error("String_Node_Str" + applicationClusterContext.getCartridgeType() + "String_Node_Str");
        return;
      }
    }
    topology.addApplication(application);
    TopologyManager.updateTopology(topology);
    log.info("String_Node_Str" + application.getId() + "String_Node_Str");
    TopologyEventPublisher.sendApplicationCreatedEvent(application,clusters);
  }
  finally {
    TopologyManager.releaseWriteLock();
  }
}

Fixed version (ground truth):
public static void handleApplicationDeployed(Application application,Set<ApplicationClusterContext> applicationClusterContexts,Set<MetaDataHolder> metaDataHolders){
  Topology topology=TopologyManager.getTopology();
  try {
    TopologyManager.acquireWriteLock();
    if (topology.applicationExists(application.getId())) {
      log.warn("String_Node_Str" + application.getId() + "String_Node_Str");
      return;
    }
    List<Cluster> clusters=new ArrayList<Cluster>();
    for (    ApplicationClusterContext applicationClusterContext : applicationClusterContexts) {
      Cluster cluster=new Cluster(applicationClusterContext.getCartridgeType(),applicationClusterContext.getClusterId(),applicationClusterContext.getDeploymentPolicyName(),applicationClusterContext.getAutoscalePolicyName(),application.getId());
      cluster.setStatus(Status.Created);
      cluster.addHostName(applicationClusterContext.getHostName());
      cluster.setTenantRange(applicationClusterContext.getTenantRange());
      clusters.add(cluster);
      Service service=topology.getService(applicationClusterContext.getCartridgeType());
      if (service != null) {
        service.addCluster(cluster);
        log.info("String_Node_Str" + cluster.toString() + "String_Node_Str"+ application.getId());
      }
 else {
        log.error("String_Node_Str" + applicationClusterContext.getCartridgeType() + "String_Node_Str");
        return;
      }
    }
    topology.addApplication(application);
    TopologyManager.updateTopology(topology);
    log.info("String_Node_Str" + application.getId() + "String_Node_Str");
    TopologyEventPublisher.sendApplicationCreatedEvent(application,clusters);
  }
  finally {
    TopologyManager.releaseWriteLock();
  }
}