Program: 82509
Project: 82509
Buggy source:
@Override public void run(){
  try {
    log.debug("String_Node_Str");
    String zookeeperId=this.database.getZookeeperId(this.zookeeper);
    List<Map<String,Object>> clusters=this.database.getClusters(zookeeperId);
    for (    Map<String,Object> cluster : clusters) {
      String clusterName=(String)cluster.get("String_Node_Str");
      Integer clusterId=(Integer)cluster.get("String_Node_Str");
      List<String> tables=connection.tableListByCluster(clusterName);
      if (tables == null) {
        throw new NullReturnedException("String_Node_Str" + clusterName + "String_Node_Str");
      }
      for (      final String tableName : tables) {
        TableDescriptor descriptor=connection.describe(tableName);
        if (descriptor == null) {
          log.error("String_Node_Str" + tableName + "String_Node_Str");
          continue;
        }
        Map<String,Object> existingTable=this.database.getExistingTable(tableName,clusterId);
        Map<String,Object> tableInfo=new HashMap<String,Object>();
        tableInfo.put("String_Node_Str",existingTable.get("String_Node_Str"));
        tableInfo.put("String_Node_Str",descriptor.isEnabled);
        TableMap.getInstance().put(tableName + "String_Node_Str" + clusterName,tableInfo);
        if (descriptor.isEnabled) {
          new Thread(new SchemaCollector(this.connection,tableName,clusterId,descriptor,this.database)).start();
        }
        new Thread(new ServerCollector(connection,tableName,clusterId,this.database)).start();
        new Thread(new StatsCollector(connection,tableName,clusterId,this.database)).start();
      }
    }
  }
 catch (  ZookeeperNameCollisionException e) {
    log.error(e.getMessage(),e);
  }
catch (  ZookeeperNameMissingException e) {
    log.error(e.getMessage(),e);
  }
catch (  TableMissingException e) {
    log.error(e.getMessage(),e);
  }
catch (  TableCollisionException e) {
    log.error(e.getMessage(),e);
  }
catch (  NullReturnedException e) {
    log.error(e.getMessage(),e);
  }
catch (  Exception e) {
    log.error("String_Node_Str",e);
  }
}

Fixed version (ground truth):
@Override public void run(){
  try {
    String zookeeperId;
    try {
      zookeeperId=this.blurDatabase.getZookeeperId(this.zookeeper);
    }
 catch (    ZookeeperNameMissingException e) {
      log.error(e.getMessage(),e);
      return;
    }
catch (    ZookeeperNameCollisionException e) {
      log.error(e.getMessage(),e);
      return;
    }
    for (    Map<String,Object> cluster : this.blurDatabase.getClusters(zookeeperId)) {
      String clusterName=(String)cluster.get("String_Node_Str");
      Integer clusterId=(Integer)cluster.get("String_Node_Str");
      List<String> tables;
      try {
        tables=blurConnection.tableListByCluster(clusterName);
      }
 catch (      Exception e) {
        log.error("String_Node_Str" + clusterName + "String_Node_Str",e);
        continue;
      }
      for (      final String tableName : tables) {
        TableDescriptor descriptor;
        try {
          descriptor=blurConnection.describe(tableName);
        }
 catch (        Exception e) {
          log.error("String_Node_Str" + tableName + "String_Node_Str",e);
          continue;
        }
        Map<String,Object> existingTable;
        try {
          existingTable=this.blurDatabase.getExistingTable(tableName,clusterId);
        }
 catch (        TableMissingException e) {
          log.error(e.getMessage(),e);
          continue;
        }
catch (        TableCollisionException e) {
          log.error(e.getMessage(),e);
          continue;
        }
        Map<String,Object> tableInfo=new HashMap<String,Object>();
        tableInfo.put("String_Node_Str",existingTable.get("String_Node_Str"));
        tableInfo.put("String_Node_Str",descriptor.isEnabled);
        TableMap.getInstance().put(tableName + "String_Node_Str" + clusterName,tableInfo);
        if (descriptor.isEnabled) {
          new Thread(new SchemaCollector(this.blurConnection,tableName,clusterId,descriptor,this.database)).start();
        }
        new Thread(new ServerCollector(this.blurConnection,tableName,clusterId,this.database)).start();
        new Thread(new StatsCollector(this.blurConnection,tableName,clusterId,this.database)).start();
      }
    }
  }
 catch (  Exception e) {
    log.error("String_Node_Str",e);
  }
}