Program: 147369
Project: 147369
Buggy source:
private Stream<StringStringStringTuple> extractTuples(){
  Stream.Builder<StringStringStringTuple> stream=Stream.builder();
  this.anytd.getHeadline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getOnlineHeadline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getByline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getDateline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getArticleAbstract().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getLeadParagraphAsList().stream().filter(i -> !i.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getOnlineLeadParagraphAsList().stream().filter(str -> !str.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getBodyAsList().stream().filter(str -> !str.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str",null,str)));
  this.anytd.getCorrectionText().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getKicker().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  return stream.build();
}

Fixed version (ground truth):
private Stream<StringStringStringTuple> extractTuples(){
  Stream.Builder<StringStringStringTuple> stream=Stream.builder();
  this.anytd.getHeadline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getOnlineHeadline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getByline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getDateline().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getArticleAbstract().ifPresent(str -> {
    if (!str.isEmpty())     stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str));
 else     LOGGER.debug("String_Node_Str");
  }
);
  this.anytd.getLeadParagraphAsList().stream().filter(i -> !i.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getOnlineLeadParagraphAsList().stream().filter(str -> !str.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getBodyAsList().stream().filter(str -> !str.isEmpty()).forEach(str -> stream.add(StringStringStringTuple.create("String_Node_Str",null,str)));
  this.anytd.getCorrectionText().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  this.anytd.getKicker().ifPresent(str -> stream.add(StringStringStringTuple.create("String_Node_Str","String_Node_Str",str)));
  return stream.build();
}