The subref is of course overhead, but you might want to keep it as named sub for multiple use.
Or just eliminate it entirely using a do-block instead of indirecting it with a subroutine: 
my $dir = shift;
my @list = grep /\.java$/ , do {
    if (opendir my $dh, $dir) {
      my @l = readdir $dh;
      closedir $dh;
      @l;
    } else { () }
  };

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-- Randal L. Schwartz, Perl hacker

In reply to •Re: Re: globing directory names with spaces by merlyn
in thread globing directory names with spaces by abhishes

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