Program: 120614
Project: 120614
Buggy source:
public String getDescription(){
  StringBuilder sb=new StringBuilder();
  String separator="String_Node_Str";
  if (entry instanceof InputColumnTableEntry) {
    InputColumnTableEntry inputEntry=(InputColumnTableEntry)entry;
    IMetadataColumn metadataColumn=inputEntry.getMetadataColumn();
    sb.append(Messages.getString("String_Node_Str")).append("String_Node_Str").append(metadataColumn.getLabel()).append("String_Node_Str");
    sb.append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(metadataColumn.getLabel());
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(metadataColumn.isKey());
    if (!MapperMain.isStandAloneMode()) {
      sb.append(AbstractLanguage.CARRIAGE_RETURN);
      sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getTalendType()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    if (metadataColumn.getLength() != null && metadataColumn.getLength() > 0) {
      sb.append(format(metadataColumn.getLength()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    if (metadataColumn.getPrecision() != null && metadataColumn.getPrecision() > 0) {
      sb.append(format(metadataColumn.getPrecision()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getDefault()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getComment()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(format(entry.getExpression()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
  }
 else   if (entry instanceof VarTableEntry) {
    sb.append(Messages.getString("String_Node_Str")).append("String_Node_Str").append(entry.getName()).append("String_Node_Str");
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(format(entry.getExpression()));
  }
  return sb.toString();
}

Fixed version (ground truth):
public String getDescription(){
  StringBuilder sb=new StringBuilder();
  String separator="String_Node_Str";
  if (entry instanceof InputColumnTableEntry) {
    InputColumnTableEntry inputEntry=(InputColumnTableEntry)entry;
    IMetadataColumn metadataColumn=inputEntry.getMetadataColumn();
    sb.append(Messages.getString("String_Node_Str")).append("String_Node_Str").append(metadataColumn.getLabel()).append("String_Node_Str");
    sb.append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(metadataColumn.getLabel());
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(metadataColumn.isKey());
    if (!MapperMain.isStandAloneMode()) {
      sb.append(AbstractLanguage.CARRIAGE_RETURN);
      sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getTalendType()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    if (metadataColumn.getLength() != null && metadataColumn.getLength() > 0) {
      sb.append(format(metadataColumn.getLength()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    if (metadataColumn.getPrecision() != null && metadataColumn.getPrecision() > 0) {
      sb.append(format(metadataColumn.getPrecision()));
    }
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getDefault()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append(format(metadataColumn.getComment()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(format(entry.getExpression()));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
  }
 else   if (entry instanceof VarTableEntry) {
    sb.append(Messages.getString("String_Node_Str")).append("String_Node_Str").append(entry.getName()).append("String_Node_Str");
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(format(entry.getExpression()));
  }
 else   if (entry instanceof GlobalMapEntry) {
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append("String_Node_Str");
    sb.append(Messages.getString("String_Node_Str"));
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append("String_Node_Str");
    sb.append(entry.getName());
    sb.append(AbstractLanguage.CARRIAGE_RETURN);
    sb.append(separator).append(Messages.getString("String_Node_Str")).append("String_Node_Str");
    sb.append(entry.getExpression());
  }
  return sb.toString();
}