Program: 51880
Project: 51880
Buggy source:
protected void populateMetadata(Context c,Item item) throws SQLException, AuthorizeException {
  DCDate now=DCDate.getCurrent();
  itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",null,now.toString());
  if (embargoService.getEmbargoTermsAsDate(c,item) == null) {
    itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",null,now.toString());
  }
  List<MetadataValue> currentDateIssued=itemService.getMetadata(item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",Item.ANY);
  itemService.clearMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",Item.ANY);
  for (  MetadataValue dcv : currentDateIssued) {
    if (dcv.getValue() != null && dcv.getValue().equalsIgnoreCase("String_Node_Str")) {
      DCDate issued=new DCDate(now.getYear(),now.getMonth(),now.getDay(),-1,-1,-1);
      itemService.addMetadata(c,item,dcv.getMetadataField(),dcv.getLanguage(),issued.toString());
    }
 else     if (dcv.getValue() != null) {
      itemService.addMetadata(c,item,dcv.getMetadataField(),dcv.getLanguage(),dcv.getValue());
    }
  }
  String provDescription="String_Node_Str" + now + "String_Node_Str"+ getBitstreamProvenanceMessage(c,item);
  if (currentDateIssued.isEmpty()) {
    String previousDateIssued=currentDateIssued.get(0).getValue();
    if (previousDateIssued != null && !previousDateIssued.equalsIgnoreCase("String_Node_Str")) {
      DCDate d=new DCDate(previousDateIssued);
      provDescription=provDescription + "String_Node_Str" + d.toString();
    }
  }
  itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str","String_Node_Str",provDescription);
}

Fixed version (ground truth):
protected void populateMetadata(Context c,Item item) throws SQLException, AuthorizeException {
  DCDate now=DCDate.getCurrent();
  itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",null,now.toString());
  if (embargoService.getEmbargoTermsAsDate(c,item) == null) {
    itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",null,now.toString());
  }
  List<MetadataValue> currentDateIssued=itemService.getMetadata(item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",Item.ANY);
  itemService.clearMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str",Item.ANY);
  for (  MetadataValue dcv : currentDateIssued) {
    if (dcv.getValue() != null && dcv.getValue().equalsIgnoreCase("String_Node_Str")) {
      DCDate issued=new DCDate(now.getYear(),now.getMonth(),now.getDay(),-1,-1,-1);
      itemService.addMetadata(c,item,dcv.getMetadataField(),dcv.getLanguage(),issued.toString());
    }
 else     if (dcv.getValue() != null) {
      itemService.addMetadata(c,item,dcv.getMetadataField(),dcv.getLanguage(),dcv.getValue());
    }
  }
  String provDescription="String_Node_Str" + now + "String_Node_Str"+ getBitstreamProvenanceMessage(c,item);
  if (!currentDateIssued.isEmpty()) {
    String previousDateIssued=currentDateIssued.get(0).getValue();
    if (previousDateIssued != null && !previousDateIssued.equalsIgnoreCase("String_Node_Str")) {
      DCDate d=new DCDate(previousDateIssued);
      provDescription=provDescription + "String_Node_Str" + d.toString();
    }
  }
  itemService.addMetadata(c,item,MetadataSchema.DC_SCHEMA,"String_Node_Str","String_Node_Str","String_Node_Str",provDescription);
}