import SOAP-WSDL 2.00_33 from CPAN

git-cpan-module:   SOAP-WSDL
git-cpan-version:  2.00_33
git-cpan-authorid: MKUTTER
git-cpan-file:     authors/id/M/MK/MKUTTER/SOAP-WSDL-2.00_33.tar.gz

lib/SOAP/WSDL/Service.pm

@@ -4,6 +4,6 @@ use warnings;
 use Class::Std::Fast::Storable;
 use base qw(SOAP::WSDL::Base);
 
-my %port_of    :ATTR(:name<port>   :default<()>);
+my %port_of    :ATTR(:name<port>   :default<[]>);
 
 1;