Program: 113005
Project: 113005
Buggy source:
public static StoreFactoryFamilySpi findStoreFamily(final Map<String,String> configOptions){
  final Object storeHint=configOptions.get(STORE_HINT_KEY);
  if (storeHint != null) {
    final StoreFactoryFamilySpi factory=registeredStoreFactoryFamilies.get(storeHint.toString());
    if (factory != null) {
      final List<String> missingOptions=getMissingRequiredOptions(factory,configOptions);
      if (missingOptions.isEmpty()) {
        return factory;
      }
      LOGGER.error("String_Node_Str" + storeHint.toString() + "String_Node_Str"+ ConfigUtils.getOptions(missingOptions));
      return null;
    }
 else {
      LOGGER.error("String_Node_Str" + storeHint.toString() + "String_Node_Str");
      return null;
    }
  }
  int matchingFactoryOptionCount=-1;
  StoreFactoryFamilySpi matchingFactory=null;
  boolean matchingFactoriesHaveSameOptionCount=false;
  for (  final Entry<String,StoreFactoryFamilySpi> entry : registeredStoreFactoryFamilies.entrySet()) {
    final StoreFactoryFamilySpi factory=entry.getValue();
    final List<String> missingOptions=getMissingRequiredOptions(factory,configOptions);
    ConfigOption[] factoryOptions=ConfigUtils.createConfigOptionsFromJCommander(factory.getDataStoreFactory().createOptionsInstance());
    if (missingOptions.isEmpty() && ((matchingFactory == null) || (factoryOptions.length >= matchingFactoryOptionCount))) {
      matchingFactory=factory;
      matchingFactoriesHaveSameOptionCount=(factoryOptions.length == matchingFactoryOptionCount);
      matchingFactoryOptionCount=factoryOptions.length;
    }
  }
  if (matchingFactory == null) {
    LOGGER.error("String_Node_Str");
  }
 else   if (matchingFactoriesHaveSameOptionCount) {
    LOGGER.warn("String_Node_Str");
    LOGGER.warn(matchingFactory.getName() + "String_Node_Str");
  }
  return matchingFactory;
}

Fixed version (ground truth):
public static StoreFactoryFamilySpi findStoreFamily(final Map<String,String> configOptions){
  Map<String,StoreFactoryFamilySpi> factories=getRegisteredStoreFactoryFamilies();
  final Object storeHint=configOptions.get(STORE_HINT_KEY);
  if (storeHint != null) {
    final StoreFactoryFamilySpi factory=factories.get(storeHint.toString());
    if (factory != null) {
      final List<String> missingOptions=getMissingRequiredOptions(factory,configOptions);
      if (missingOptions.isEmpty()) {
        return factory;
      }
      LOGGER.error("String_Node_Str" + storeHint.toString() + "String_Node_Str"+ ConfigUtils.getOptions(missingOptions));
      return null;
    }
 else {
      LOGGER.error("String_Node_Str" + storeHint.toString() + "String_Node_Str");
      return null;
    }
  }
  int matchingFactoryOptionCount=-1;
  StoreFactoryFamilySpi matchingFactory=null;
  boolean matchingFactoriesHaveSameOptionCount=false;
  for (  final Entry<String,StoreFactoryFamilySpi> entry : factories.entrySet()) {
    final StoreFactoryFamilySpi factory=entry.getValue();
    final List<String> missingOptions=getMissingRequiredOptions(factory,configOptions);
    ConfigOption[] factoryOptions=ConfigUtils.createConfigOptionsFromJCommander(factory.getDataStoreFactory().createOptionsInstance());
    if (missingOptions.isEmpty() && ((matchingFactory == null) || (factoryOptions.length >= matchingFactoryOptionCount))) {
      matchingFactory=factory;
      matchingFactoriesHaveSameOptionCount=(factoryOptions.length == matchingFactoryOptionCount);
      matchingFactoryOptionCount=factoryOptions.length;
    }
  }
  if (matchingFactory == null) {
    LOGGER.error("String_Node_Str");
  }
 else   if (matchingFactoriesHaveSameOptionCount) {
    LOGGER.warn("String_Node_Str");
    LOGGER.warn(matchingFactory.getName() + "String_Node_Str");
  }
  return matchingFactory;
}