Program: 149343
Project: 149343
Buggy source:
public SlaveInstanceManager() throws IOException {
  instanceIdToSlaveMap=new HashMap<String,ElasticBoxSlave>();
  cloudToInstancesMap=new HashMap<ElasticBoxCloud,List<JSONObject>>();
  cloudToWorkspaceIDsMap=new HashMap<ElasticBoxCloud,Set<String>>();
  for (  Node node : Jenkins.getInstance().getNodes()) {
    if (node instanceof ElasticBoxSlave) {
      final ElasticBoxSlave slave=(ElasticBoxSlave)node;
      ElasticBoxCloud cloud=slave.getCloud();
      if (cloud != null) {
        Set<String> workspaceIDs=cloudToWorkspaceIDsMap.get(cloud);
        if (workspaceIDs == null) {
          workspaceIDs=new HashSet<String>();
          cloudToWorkspaceIDsMap.put(cloud,workspaceIDs);
        }
        AbstractSlaveConfiguration config=slave.getSlaveConfiguration();
        if (config != null) {
          workspaceIDs.add(config.getWorkspace());
        }
 else {
          LOGGER.warning("String_Node_Str" + slave);
        }
      }
      if (slave.getInstanceUrl() != null) {
        String instanceId=slave.getInstanceId();
        instanceIdToSlaveMap.put(instanceId,slave);
      }
 else {
        if (slavesWithoutInstance == null) {
          slavesWithoutInstance=new ArrayList<>();
        }
        slavesWithoutInstance.add(slave);
      }
    }
  }
  if (slavesWithoutInstance != null) {
    ElasticBoxCloud cloud=null;
    String wks=null;
    JSONArray instances=null;
    AbstractSlaveConfiguration config=null;
    for (    ElasticBoxSlave slave : slavesWithoutInstance) {
      config=slave.getSlaveConfiguration();
      if (slave.getCloud() != null && config != null) {
        if (!slave.getCloud().equals(cloud) && !config.getWorkspace().equals(wks)) {
          cloud=slave.getCloud();
          wks=slave.getSlaveConfiguration().getWorkspace();
          instances=slave.getCloud().getClient().getInstances(wks);
        }
        for (        Object instance : instances) {
          JSONObject instanceJson=(JSONObject)instance;
          String label=instanceJson.getJSONArray("String_Node_Str").getString(0);
          if (slave.getNodeName().equals(label)) {
            String instanceId=instanceJson.getString("String_Node_Str");
            if (slave.getInstanceUrl() == null) {
              String url=slave.getCloud().getClient().getInstanceUrl(instanceId);
              slave.setInstanceUrl(slave.getCloud().getClient().getInstanceUrl(url));
              LOGGER.info("String_Node_Str" + url + "String_Node_Str"+ slave);
            }
            slavesWithoutInstance.remove(slave);
            instanceIdToSlaveMap.put(instanceId,slave);
            break;
          }
        }
      }
    }
  }
  if (LOGGER.isLoggable(Level.FINEST)) {
    StringBuilder sb=new StringBuilder(300);
    sb.append("String_Node_Str");
    sb.append("String_Node_Str").append(instanceIdToSlaveMap);
    sb.append("String_Node_Str").append(cloudToWorkspaceIDsMap);
    sb.append("String_Node_Str").append(slavesWithoutInstance);
    LOGGER.finest(sb.toString());
  }
}

Fixed version (ground truth):
public SlaveInstanceManager() throws IOException {
  instanceIdToSlaveMap=new HashMap<String,ElasticBoxSlave>();
  cloudToInstancesMap=new HashMap<ElasticBoxCloud,List<JSONObject>>();
  cloudToWorkspaceIDsMap=new HashMap<ElasticBoxCloud,Set<String>>();
  for (  Node node : Jenkins.getInstance().getNodes()) {
    if (node instanceof ElasticBoxSlave) {
      final ElasticBoxSlave slave=(ElasticBoxSlave)node;
      ElasticBoxCloud cloud=slave.getCloud();
      if (cloud != null) {
        Set<String> workspaceIDs=cloudToWorkspaceIDsMap.get(cloud);
        if (workspaceIDs == null) {
          workspaceIDs=new HashSet<String>();
          cloudToWorkspaceIDsMap.put(cloud,workspaceIDs);
        }
        AbstractSlaveConfiguration config=slave.getSlaveConfiguration();
        if (config != null) {
          workspaceIDs.add(config.getWorkspace());
        }
 else {
          LOGGER.warning("String_Node_Str" + slave);
        }
      }
      if (slave.getInstanceUrl() != null) {
        String instanceId=slave.getInstanceId();
        instanceIdToSlaveMap.put(instanceId,slave);
      }
 else {
        if (slavesWithoutInstance == null) {
          slavesWithoutInstance=new ArrayList<>();
        }
        slavesWithoutInstance.add(slave);
      }
    }
  }
  if (slavesWithoutInstance != null) {
    ElasticBoxCloud cloud=null;
    String wks=null;
    JSONArray instances=null;
    AbstractSlaveConfiguration config;
    Iterator<ElasticBoxSlave> iterator=slavesWithoutInstance.iterator();
    while (iterator.hasNext()) {
      ElasticBoxSlave slave=iterator.next();
      config=slave.getSlaveConfiguration();
      if (slave.getCloud() != null && config != null) {
        if (!slave.getCloud().equals(cloud) && !config.getWorkspace().equals(wks)) {
          cloud=slave.getCloud();
          wks=slave.getSlaveConfiguration().getWorkspace();
          instances=cloud.getClient().getInstances(wks);
        }
        for (        Object instance : instances) {
          JSONObject instanceJson=(JSONObject)instance;
          String label=instanceJson.getJSONArray("String_Node_Str").getString(0);
          if (slave.getNodeName().equals(label)) {
            String instanceId=instanceJson.getString("String_Node_Str");
            if (slave.getInstanceUrl() == null) {
              final String url=cloud.getClient().getInstanceUrl(instanceId);
              slave.setInstanceUrl(url);
              LOGGER.info("String_Node_Str" + url + "String_Node_Str"+ slave);
            }
            iterator.remove();
            instanceIdToSlaveMap.put(instanceId,slave);
            break;
          }
        }
      }
    }
  }
  if (LOGGER.isLoggable(Level.FINEST)) {
    StringBuilder sb=new StringBuilder(300);
    sb.append("String_Node_Str");
    sb.append("String_Node_Str").append(instanceIdToSlaveMap);
    sb.append("String_Node_Str").append(cloudToWorkspaceIDsMap);
    sb.append("String_Node_Str").append(slavesWithoutInstance);
    LOGGER.finest(sb.toString());
  }
}