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    Use of uninitialized value in concatenation (.) or 
string at d:/Perl/site/lib/lz.pm line 190.
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    #my $outPath = $obj->{outpath}{absolut} . "-" . $obj->{sap}{jfExtNum};

...
                   defined  $obj->{sap}{jfExtNum} 
                   && "-" . $obj->{sap}{jfExtNum}
               };