sub load_class {
my $class = shift;
- return 0 if ref($class) || !defined($class) || !length($class);
+ if (ref($class) || !defined($class) || !length($class)) {
+ my $display = defined($class) ? $class : 'undef';
+ confess "Invalid class name ($display)";
+ }
return 1 if is_class_loaded($class);