Bug #112303 for XML-Dumper: Use of uninitialized value in concatenation (.) or string at XML/Dumper.pm line 400.

Subject:	Use of uninitialized value in concatenation (.) or string at XML/Dumper.pm line 400.
Date:	Tue, 23 Feb 2016 07:46:23 +0000
To:	"bug-XML-Dumper [...] rt.cpan.org" <bug-XML-Dumper [...] rt.cpan.org>
From:	"Weickum, Michael" <michael.weickum [...] tds.fujitsu.com>

You can avoid this warning message which will appear if you pass a undef scalar to pl2xml. my $test=undef; my $dump = new XML::Dumper; my $xml=$dump->pl2xml( $test ); print $xml; Will give you a warning message: Use of uninitialized value in concatenation (.) or string at XML/Dumper.pm line 400. Just add a little check in line 400: 400: - $string .= "\n" . " " x $indent . $type . xml_escape( $ref ) . "</scalar>"; 400: + $string .= "\n" . " " x $indent . $type . ( defined $ref ? xml_escape( $ref ) : '' ) . "</scalar>"; [Webinar "Managed on-premise Cloud"]<https://ts.fujitsu.com/cisi/de/Event.aspx?ID=5a24805d-7ed4-48c6-a99e-cd97d3e102be#TabNav?utm_source=FTDS%20EMail&utm_medium=Signature%20FTDS%20EMail&utm_campaign=Managed%20on-premise%20Cloud&utm_term=&utm_content=Anmeldung>