Program: 11306
Project: 11306
Buggy source:
private <T extends Item>Collection<T> executeQuery(final AttributeQuery query,final Class<T> itemClass){
  final ItemConfiguration itemConfiguration=getItemConfiguration(itemClass);
  final String tableName=databaseSchemaHolder.schemaName() + "String_Node_Str" + itemConfiguration.tableName();
  final Table table=dynamoDBClient.getTable(tableName);
  final List<T> totalItems=new ArrayList<>();
  if (itemConfiguration.hasIndexForQuery(query) && query.getCondition().getComparisonOperator() == Operators.EQUALS) {
    final QuerySpec querySpec=QuerySpecBuilder.build(query,itemClass);
    final ItemCollection<QueryOutcome> queryOutcome;
    if (itemConfiguration.primaryKeyDefinition().propertyName().equals(query.getAttributeName())) {
      queryOutcome=table.query(querySpec);
    }
 else {
      final String indexName=IndexNameBuilder.build(query);
      final Index index=table.getIndex(indexName);
      queryOutcome=index.query(querySpec);
    }
    final Iterator<com.amazonaws.services.dynamodbv2.document.Item> iterator=queryOutcome.iterator();
    while (iterator != null && iterator.hasNext()) {
      final com.amazonaws.services.dynamodbv2.document.Item item=iterator.next();
      totalItems.add(stringToItem(item.toJSON(),itemClass));
    }
  }
 else {
    logger.debug("String_Node_Str" + query);
    ScanSpec scanSpec=null;
    try {
      scanSpec=generateScanSpec(query,itemClass);
    }
 catch (    InstantiationException|IllegalAccessException|IllegalArgumentException|InvocationTargetException|NoSuchMethodException|SecurityException e) {
      throw new PersistenceResourceFailureException("String_Node_Str" + tableName + "String_Node_Str"+ query,e);
    }
    final ItemCollection<ScanOutcome> scanOutcome=table.scan(scanSpec);
    final Iterator<com.amazonaws.services.dynamodbv2.document.Item> iterator=scanOutcome.iterator();
    while (iterator.hasNext()) {
      final com.amazonaws.services.dynamodbv2.document.Item item=iterator.next();
      totalItems.add(stringToItem(item.toJSON(),itemClass));
    }
  }
  return totalItems;
}

Fixed version (ground truth):
private <T extends Item>Collection<T> executeQuery(final AttributeQuery query,final Class<T> itemClass){
  final ItemConfiguration itemConfiguration=getItemConfiguration(itemClass);
  final String tableName=databaseSchemaHolder.schemaName() + "String_Node_Str" + itemConfiguration.tableName();
  final Table table=dynamoDBClient.getTable(tableName);
  final List<T> totalItems=new ArrayList<>();
  if (itemConfiguration.hasIndexForQuery(query) && query.getCondition().getComparisonOperator() == Operators.EQUALS) {
    final QuerySpec querySpec=QuerySpecBuilder.build(query,itemClass);
    final ItemCollection<QueryOutcome> queryOutcome;
    if (itemConfiguration.primaryKeyDefinition().propertyName().equals(query.getAttributeName()) && !(query instanceof CompoundAttributeQuery)) {
      queryOutcome=table.query(querySpec);
    }
 else {
      final String indexName=IndexNameBuilder.build(query);
      final Index index=table.getIndex(indexName);
      queryOutcome=index.query(querySpec);
    }
    final Iterator<com.amazonaws.services.dynamodbv2.document.Item> iterator=queryOutcome.iterator();
    while (iterator != null && iterator.hasNext()) {
      final com.amazonaws.services.dynamodbv2.document.Item item=iterator.next();
      totalItems.add(stringToItem(item.toJSON(),itemClass));
    }
  }
 else {
    logger.debug("String_Node_Str" + query);
    ScanSpec scanSpec=null;
    try {
      scanSpec=generateScanSpec(query,itemClass);
    }
 catch (    InstantiationException|IllegalAccessException|IllegalArgumentException|InvocationTargetException|NoSuchMethodException|SecurityException e) {
      throw new PersistenceResourceFailureException("String_Node_Str" + tableName + "String_Node_Str"+ query,e);
    }
    final ItemCollection<ScanOutcome> scanOutcome=table.scan(scanSpec);
    final Iterator<com.amazonaws.services.dynamodbv2.document.Item> iterator=scanOutcome.iterator();
    while (iterator.hasNext()) {
      final com.amazonaws.services.dynamodbv2.document.Item item=iterator.next();
      totalItems.add(stringToItem(item.toJSON(),itemClass));
    }
  }
  return totalItems;
}