Program: 166532
Project: 166532
Buggy source:
/** 
 * @brief Override the visit function. The function takes care of 3 kinds of situation:(1) URI is used. For example, the ddf name is ddf://adatao/ddfA, and the query is like select * from ddf://adatao/ddfA. (2) Dataset name and namespace is used. For example, the ddf name is ddf://adatao/ddfA, and the query is like select * from ddfA, namespace = adatao. (3) List is used. For example, the query is like select {1}.a, {2}.b from {1},{2} where {1}.id={2}.id, ddfList= {"ddf://adatao/ddfA", "ddf://adatao/ddfB"}. Here we write them in a single function so that we can handle the situation when different situations are combined. For example, select {1}.a from ddf://adatao/ddfA, ddfList={"ddf://adatao/ddfB"}.
 * @param table The table that is visiting.
 */
public void visit(Table table) throws Exception {
  if (null == table || null == table.getName())   return;
  String name=table.getName();
  for (  String tablename : this.withTableNameList) {
    if (tablename.equals(name)) {
      return;
    }
  }
  Matcher matcher=this.uriPattern.matcher(name);
  if (matcher.matches()) {
    try {
      this.ddfManager.getOrRestoreDDFUri(name);
    }
 catch (    DDFException e) {
      throw new Exception("String_Node_Str" + name);
    }
    table.setName(this.ddfManager.getDDFByURI(name).getTableName());
  }
 else   if (namespace != null) {
    String uri="String_Node_Str".concat(namespace.concat("String_Node_Str").concat(name));
    try {
      this.ddfManager.getOrRestoreDDFUri(uri);
    }
 catch (    DDFException e) {
      throw new Exception("String_Node_Str" + uri);
    }
    table.setName(this.ddfManager.getDDFByURI(uri).getTableName());
  }
 else   if (uriList != null || uuidList != null) {
    Pattern indexPattern=Pattern.compile("String_Node_Str");
    Matcher indexMatcher=indexPattern.matcher(name);
    if (indexMatcher.matches()) {
      String number=name.substring(name.indexOf('{') + 1,name.indexOf('}')).trim();
      int index=Integer.parseInt(number);
      if (index < 1) {
        throw new Exception("String_Node_Str" + "String_Node_Str");
      }
      if (null == uriList) {
        if (index > uuidList.size()) {
          throw new Exception(new ArrayIndexOutOfBoundsException());
        }
 else {
          try {
            this.ddfManager.getOrRestoreDDF(uuidList.get(index - 1));
          }
 catch (          DDFException e) {
            throw new Exception("String_Node_Str" + uuidList.get(index - 1).toString());
          }
          table.setName(this.ddfManager.getDDF(uuidList.get(index - 1)).getTableName());
        }
      }
 else {
        if (index > uriList.size()) {
          throw new Exception(new ArrayIndexOutOfBoundsException());
        }
 else {
          try {
            this.ddfManager.getOrRestoreDDFUri(uriList.get(index - 1));
          }
 catch (          DDFException e) {
            throw new Exception("String_Node_Str" + uriList.get(index - 1));
          }
          table.setName(this.ddfManager.getDDFByURI(uriList.get(index - 1)).getTableName());
        }
      }
    }
 else {
      System.out.println("String_Node_Str" + table.getName());
      throw new Exception("String_Node_Str");
    }
  }
 else {
    throw new Exception("String_Node_Str");
  }
  if (table.getSampleClause() != null) {
    if (table.getSampleClause().getOnList() != null) {
      for (      SelectItem selectItem : table.getSampleClause().getOnList()) {
        selectItem.accept(this);
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * @brief Override the visit function. The function takes care of 3 kinds of situation:(1) URI is used. For example, the ddf name is ddf://adatao/ddfA, and the query is like select * from ddf://adatao/ddfA. (2) Dataset name and namespace is used. For example, the ddf name is ddf://adatao/ddfA, and the query is like select * from ddfA, namespace = adatao. (3) List is used. For example, the query is like select {1}.a, {2}.b from {1},{2} where {1}.id={2}.id, ddfList= {"ddf://adatao/ddfA", "ddf://adatao/ddfB"}. Here we write them in a single function so that we can handle the situation when different situations are combined. For example, select {1}.a from ddf://adatao/ddfA, ddfList={"ddf://adatao/ddfB"}.
 * @param table The table that is visiting.
 */
public void visit(Table table) throws Exception {
  if (null == table || null == table.getName())   return;
  String name=table.getName();
  for (  String tablename : this.withTableNameList) {
    if (tablename.equals(name)) {
      return;
    }
  }
  for (  String tablename : this.aliasTableNameList) {
    if (tablename.equals(name)) {
      return;
    }
  }
  Matcher matcher=this.uriPattern.matcher(name);
  if (matcher.matches()) {
    try {
      this.ddfManager.getOrRestoreDDFUri(name);
    }
 catch (    DDFException e) {
      throw new Exception("String_Node_Str" + name);
    }
    table.setName(this.ddfManager.getDDFByURI(name).getTableName());
  }
 else   if (namespace != null) {
    String uri="String_Node_Str".concat(namespace.concat("String_Node_Str").concat(name));
    try {
      this.ddfManager.getOrRestoreDDFUri(uri);
    }
 catch (    DDFException e) {
      throw new Exception("String_Node_Str" + uri);
    }
    table.setName(this.ddfManager.getDDFByURI(uri).getTableName());
  }
 else   if (uriList != null || uuidList != null) {
    Pattern indexPattern=Pattern.compile("String_Node_Str");
    Matcher indexMatcher=indexPattern.matcher(name);
    if (indexMatcher.matches()) {
      String number=name.substring(name.indexOf('{') + 1,name.indexOf('}')).trim();
      int index=Integer.parseInt(number);
      if (index < 1) {
        throw new Exception("String_Node_Str" + "String_Node_Str");
      }
      if (null == uriList) {
        if (index > uuidList.size()) {
          throw new Exception(new ArrayIndexOutOfBoundsException());
        }
 else {
          try {
            this.ddfManager.getOrRestoreDDF(uuidList.get(index - 1));
          }
 catch (          DDFException e) {
            throw new Exception("String_Node_Str" + uuidList.get(index - 1).toString());
          }
          table.setName(this.ddfManager.getDDF(uuidList.get(index - 1)).getTableName());
        }
      }
 else {
        if (index > uriList.size()) {
          throw new Exception(new ArrayIndexOutOfBoundsException());
        }
 else {
          try {
            this.ddfManager.getOrRestoreDDFUri(uriList.get(index - 1));
          }
 catch (          DDFException e) {
            throw new Exception("String_Node_Str" + uriList.get(index - 1));
          }
          table.setName(this.ddfManager.getDDFByURI(uriList.get(index - 1)).getTableName());
        }
      }
    }
 else {
      System.out.println("String_Node_Str" + table.getName());
      throw new Exception("String_Node_Str");
    }
  }
 else {
    throw new Exception("String_Node_Str");
  }
  if (table.getSampleClause() != null) {
    if (table.getSampleClause().getOnList() != null) {
      for (      SelectItem selectItem : table.getSampleClause().getOnList()) {
        selectItem.accept(this);
      }
    }
  }
}