While working with the DateTime module, I'm getting a very odd and frustrating error back from the Params::Validate module: 
The 'locale' parameter (undef) to DateTime::new was an 'undef', which 
+is not one of the allowed types: scalar object
 at /usr/lib/perl5/site_perl/5.8.5/Params/ValidatePP.pm line 634
    Params::Validate::__ANON__('The \'locale\' parameter (undef) to Da
+teTime::new was an \'un...') called at /usr/lib/perl5/site_perl/5.8.5
+/Params/ValidatePP.pm line 485
    Params::Validate::_validate_one_param('undef', 'HASH(0x1039fb0)', 
+'HASH(0xe04910)', 'The \'locale\' parameter (undef)') called at /usr/
+lib/perl5/site_perl/5.8.5/Params/ValidatePP.pm line 345
    Params::Validate::validate('ARRAY(0xa87370)', 'HASH(0xe284a0)') ca
+lled at /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi/Da
+teTime.pm line 171
    DateTime::new('undef', 'year', 2015, 'month', 08, 'day', 24, 'hour
+', 17, ...) called at MonitorClass.pm line 80
    MonitorClass::MakeDateTime('MonitorClass=HASH(0xf03430)', 2015, 08
+, 24, 17, 36, 47, 144) called at MonitorClass.pm line 196

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This is driving me nuts, as the parameters sent to DateTime->new() are correct, as can be seen in the final line of my error. I'm not even able to reproduce the issue consistently. For the vast majority of cases my code works great but every morning when I get into work I see that it's thrown the above a few times.

I'm going to try explicitly setting the locale parameter each time I call DateTime->new(); but I'd rather understand what I'm doing wrong here.

Here's my method that's invoking DateTime->new(); it's ridiculously simple: 
sub MakeDateTime {
  my $self = shift;
  my ($Year, $Month, $Day, $Hour, $Minute, $Second, $MilliSecond) = @_
+;
  
  my $DateTime = DateTime->new(
    year       => $Year,
    month      => $Month,
    day        => $Day,
    hour       => $Hour,
    minute     => $Minute,
    second     => $Second,
    nanosecond => ($MilliSecond * 1000000),
    time_zone  => 'America/New_York',
    locale     => 'en_US',
  );
  
  return $DateTime;
}

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In reply to Strange Params::Validate Error by Stringer

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