Program: 8409
Project: 8409
Buggy source:
/** 
 * Detects Selenium   {@link org.openqa.selenium.By By} type depending on what the locator string starts with.
 * @param locator String that represents the means to locate this element (could be id/name/xpath/css locator).
 * @return {@link By} sub-class that represents the actual location strategy that will be used.
 */
public static By getFindElementType(String locator){
  logger.entering(locator);
  Preconditions.checkArgument(StringUtils.isNotBlank(locator),INVALID_LOCATOR_ERR_MSG);
  By valueToReturn=null;
  locator=locator.trim();
  int typeDelimiterIndex=locator.indexOf('=');
  String locatorType=typeDelimiterIndex != -1 ? locator.substring(0,typeDelimiterIndex) : locator;
switch (locatorType) {
case "String_Node_Str":
    valueToReturn=By.id(locator.substring(typeDelimiterIndex + 1));
  break;
case "String_Node_Str":
valueToReturn=By.name(locator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.linkText(locator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.xpath(locator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.cssSelector(locator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.className(locator.substring(typeDelimiterIndex + 1));
break;
default :
if (locator.startsWith("String_Node_Str") || locator.startsWith("String_Node_Str")) {
valueToReturn=By.xpath(locator);
break;
}
valueToReturn=new ByIdOrName(locator);
}
if (logger.isLoggable(Level.FINE)) {
String msg=valueToReturn.getClass().getSimpleName() + "String_Node_Str" + locator;
logger.log(Level.FINE,msg);
}
logger.exiting(valueToReturn);
return valueToReturn;
}

Fixed version (ground truth):
/** 
 * Detects Selenium   {@link org.openqa.selenium.By By} type depending on what the locator string starts with.
 * @param locator String that represents the means to locate this element (could be id/name/xpath/css locator).
 * @return {@link By} sub-class that represents the actual location strategy that will be used.
 */
public static By getFindElementType(String locator){
  logger.entering(locator);
  Preconditions.checkArgument(StringUtils.isNotBlank(locator),INVALID_LOCATOR_ERR_MSG);
  By valueToReturn=null;
  String seleniumLocator=locator.trim();
  int typeDelimiterIndex=seleniumLocator.indexOf('=');
  String locatorType=typeDelimiterIndex != -1 ? seleniumLocator.substring(0,typeDelimiterIndex) : seleniumLocator;
switch (locatorType) {
case "String_Node_Str":
    valueToReturn=By.id(seleniumLocator.substring(typeDelimiterIndex + 1));
  break;
case "String_Node_Str":
valueToReturn=By.name(seleniumLocator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.linkText(seleniumLocator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.xpath(seleniumLocator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.cssSelector(seleniumLocator.substring(typeDelimiterIndex + 1));
break;
case "String_Node_Str":
valueToReturn=By.className(seleniumLocator.substring(typeDelimiterIndex + 1));
break;
default :
if (seleniumLocator.startsWith("String_Node_Str") || seleniumLocator.startsWith("String_Node_Str")) {
valueToReturn=By.xpath(seleniumLocator);
break;
}
valueToReturn=new ByIdOrName(seleniumLocator);
}
if (logger.isLoggable(Level.FINE)) {
String msg=valueToReturn.getClass().getSimpleName() + "String_Node_Str" + seleniumLocator;
logger.log(Level.FINE,msg);
}
logger.exiting(valueToReturn);
return valueToReturn;
}