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    Rather than having to debug these I just created this module, which is
    just a copy of HTML::Mason::ApacheHandler. By using something
    bug-compatible with HTML::Mason::ApacheHandler I didn't have to worry
    that bugs that were cropping up during the transition were due to
    migrating from this ~1000 line class to Graham Barr entirely different
    HTML::Mason::PlackHandler.

    This module has the following changes from HTML::Mason::ApacheHandler:

    *   Changed the $VERSION number to the version of this distro

    *   "s/HTML::Mason::ApacheHandler/HTML::MasonX::ApacheLikePlackHandler/g
        "

    *   "s/HTML::Mason::Request::ApacheHandler/HTML::MasonX::Request::Apache
        LikePlackHandler/g"

    *   Removed code that wasn't run when APACHE2 was false.

        I was already running on Apache 1 anyway, and didn't want to bother
        with the Apache 1 parts of this API. So away it goes!

    *   Removed loading of mod_perl libraries

    But most importantly: Instead of requiring various Apache2::* modules we
    require that you define
    "HTML_MASONX_APACHELIKEPLACKHANDLER_MOCK_APACHE2_{REQUEST,REQUEST_INSTAN
    CE,STATUS,SERVERUTIL}_CLASS" in %ENV before requiring this module.

    Those %ENV entries should be the name of already loaded Perl packages
    implement an API emulating the Apache2 API this package needs. The
    "APACHE2_REQUEST_INSTANCE" variable is a special case though, it's the
    package your request object (implementing the Apache2 API) will be
    blessed into.

    This makes for a rather convoluted API, but the goal was to modify the
    upstream code as little as possible, both to avoid accidentally
    introducing bugs, and to make it easier to incorporate future upstream
    patches.

EXAMPLE
    Here's an example of the source of packages you could as the
    "HTML_MASONX_APACHELIKEPLACKHANDLER_MOCK_*" variables. These are just
    bare-minimal implementations of the Apache API that
    HTML::MasonX::ApacheLikePlackHandler expects uses.

  Fake APR::Table class
        # http://perl.apache.org/docs/2.0/api/APR/Table.html
        package Your::MasonCompat::APR::Like::Table;
        use strict;
        use warnings;

        sub new {
            my ($class, $table) = @_;

            # XXX: This is very naive, in reality an APR::Table maybe
            # can't be represented as a hash (multiple values for the same
            # key?). Or at least we need magic to implement a similar
            # Tie-interface.
            bless $table => $class;
        }

        sub get {
            my ($self, $key) = @_;

            die "PANIC: Someone's trying to get a key ($key) that we don't have" unless exists $self->{$key};

            if (ref $self->{$key} eq 'ARRAY') {
                # Our dumb emulation for PerlAddVar without supporting all
                # of APR::Table.
                return @{$self->{$key}};
            } else {
                return $self->{$key};
            }
        }

  HTML_MASONX_APACHELIKEPLACKHANDLER_MOCK_APACHE2_REQUEST_CLASS
    You're going to have to use Plack::App::FakeApache::Request, or pester
    me to generalize and open source the version I'm using. See the
    description section.

  HTML_MASONX_APACHELIKEPLACKHANDLER_MOCK_APACHE2_REQUEST_CLASS
        package Your::ApacheLikePlackHandler::Compat::Apache2::Request;
        use strict;
        use warnings;
        use Scalar::Util qw(blessed);

        # NEEDED because of HTML::MasonX::ApacheLikePlackHandler code that
        # does $this_pkg->VERSION. We should never need to change this.
        our $VERSION = 1.2345;

        # This is only used for:
        #
        #    sub { Apache2::Request->new( $_[0] ) };
        #
        # So just return the original object. The reason for this being
        # called at all is because the mod_perl 1 API would do something
        # different
        sub new {
            my ($class, $blessed_request_object) = @_;

            die "PANIC: We should only get an already blessed object as an argument"
                unless blessed($blessed_request_object);

            return $blessed_request_object;
        }

        # We do nothing except the above in this class from
        # HTML::MasonX::ApacheLikePlackHandler as of writing this.

  HTML_MASONX_APACHELIKEPLACKHANDLER_MOCK_APACHE2_SERVERUTIL_CLASS
        package Your::ApacheLikePlackHandler::Compat::Apache2::ServerUtil;
        use strict;
        use warnings;
        use Your::WebServerConfiguration qw(
            PLACK_WEBSERVER_CONFIGURATION_VARIABLES
        );

        sub server {
            my $class = shift;