Program: 44133
Project: 44133
Buggy source:
private Object getArgument(final Properties properties,final Method method,final String propertyName,final String propValue) throws IOException {
  final Class<? extends Object> objClass=method.getDeclaringClass();
  final Object argument;
  final Class<?> paramType=method.getParameterTypes()[0];
  if (paramType == String.class) {
    argument=propValue;
  }
 else   if (paramType == Handler.class) {
    argument=configureHandler(properties,propValue);
  }
 else   if (paramType == Filter.class) {
    argument=configureFilter(properties,propValue);
  }
 else   if (paramType == Formatter.class) {
    argument=configureFormatter(properties,propValue);
  }
 else   if (paramType == java.util.logging.Level.class) {
    argument=LogContext.getSystemLogContext().getLevelForName(propValue);
  }
 else   if (paramType == java.util.logging.Logger.class) {
    argument=LogContext.getSystemLogContext().getLogger(propValue);
  }
 else   if (paramType == boolean.class || paramType == Boolean.class) {
    argument=Boolean.valueOf(propValue);
  }
 else   if (paramType == byte.class || paramType == Byte.class) {
    argument=Byte.valueOf(propValue);
  }
 else   if (paramType == short.class || paramType == Short.class) {
    argument=Short.valueOf(propValue);
  }
 else   if (paramType == int.class || paramType == Integer.class) {
    argument=Integer.valueOf(propValue);
  }
 else   if (paramType == long.class || paramType == Long.class) {
    argument=Long.valueOf(propValue);
  }
 else   if (paramType == float.class || paramType == Float.class) {
    argument=Float.valueOf(propValue);
  }
 else   if (paramType == double.class || paramType == Double.class) {
    argument=Double.valueOf(propValue);
  }
 else   if (paramType == char.class || paramType == Character.class) {
    argument=Character.valueOf(propValue.length() > 0 ? propValue.charAt(0) : 0);
  }
 else   if (paramType == TimeZone.class) {
    argument=TimeZone.getTimeZone(propValue);
  }
 else   if (paramType == Charset.class) {
    argument=Charset.forName(propValue);
  }
 else   if (Enum.class.isAssignableFrom(paramType)) {
    argument=Enum.valueOf(paramType.asSubclass(Enum.class),propValue);
  }
 else {
    throw new IllegalArgumentException("String_Node_Str" + propertyName + "String_Node_Str"+ objClass);
  }
  return argument;
}

Fixed version (ground truth):
private Object getArgument(final Properties properties,final Method method,final String propertyName,final String propValue) throws IOException {
  final Class<? extends Object> objClass=method.getDeclaringClass();
  final Object argument;
  final Class<?> paramType=method.getParameterTypes()[0];
  if (paramType == String.class) {
    argument=propValue;
  }
 else   if (paramType == Handler.class) {
    argument=configureHandler(properties,propValue);
  }
 else   if (paramType == Filter.class) {
    argument=configureFilter(properties,propValue);
  }
 else   if (paramType == Formatter.class) {
    argument=configureFormatter(properties,propValue);
  }
 else   if (paramType == java.util.logging.Level.class) {
    argument=LogContext.getSystemLogContext().getLevelForName(propValue);
  }
 else   if (paramType == java.util.logging.Logger.class) {
    argument=LogContext.getSystemLogContext().getLogger(propValue);
  }
 else   if (paramType == boolean.class || paramType == Boolean.class) {
    argument=Boolean.valueOf(propValue);
  }
 else   if (paramType == byte.class || paramType == Byte.class) {
    argument=Byte.valueOf(propValue);
  }
 else   if (paramType == short.class || paramType == Short.class) {
    argument=Short.valueOf(propValue);
  }
 else   if (paramType == int.class || paramType == Integer.class) {
    argument=Integer.valueOf(propValue);
  }
 else   if (paramType == long.class || paramType == Long.class) {
    argument=Long.valueOf(propValue);
  }
 else   if (paramType == float.class || paramType == Float.class) {
    argument=Float.valueOf(propValue);
  }
 else   if (paramType == double.class || paramType == Double.class) {
    argument=Double.valueOf(propValue);
  }
 else   if (paramType == char.class || paramType == Character.class) {
    argument=Character.valueOf(propValue.length() > 0 ? propValue.charAt(0) : 0);
  }
 else   if (paramType == TimeZone.class) {
    argument=TimeZone.getTimeZone(propValue);
  }
 else   if (paramType == Charset.class) {
    argument=Charset.forName(propValue);
  }
 else   if (paramType.isEnum()) {
    argument=Enum.valueOf(paramType.asSubclass(Enum.class),propValue);
  }
 else {
    throw new IllegalArgumentException("String_Node_Str" + propertyName + "String_Node_Str"+ objClass);
  }
  return argument;
}