diff --git a/app/helpers/webpack_helper.rb b/app/helpers/webpack_helper.rb
index e12e4ba70e97549548882929ae3b9591b0d9e082..72f6b3970469fd0bd1083db370aa8930dfe0c555 100644
--- a/app/helpers/webpack_helper.rb
+++ b/app/helpers/webpack_helper.rb
@@ -1,5 +1,3 @@
-require 'gitlab/webpack/manifest'
-
 module WebpackHelper
   def webpack_bundle_tag(bundle)
     javascript_include_tag(*webpack_entrypoint_paths(bundle))
diff --git a/config/initializers/2_gitlab.rb b/config/initializers/2_gitlab.rb
index 1d2ab606a632cef7d998d1c185c1d4440b7403b1..8b7f245b7b09e50630484aaa8c955a2d26e91042 100644
--- a/config/initializers/2_gitlab.rb
+++ b/config/initializers/2_gitlab.rb
@@ -1 +1 @@
-require_relative '../../lib/gitlab'
+require_dependency 'gitlab'
diff --git a/config/initializers/omniauth.rb b/config/initializers/omniauth.rb
index e33ebb25c4c591c6873193ff721301634e6a6ed9..a7fa926a853ade1e1bc91065d5daa2c2f4ef3433 100644
--- a/config/initializers/omniauth.rb
+++ b/config/initializers/omniauth.rb
@@ -19,12 +19,5 @@ end
 
 if Gitlab.config.omniauth.enabled
   provider_names = Gitlab.config.omniauth.providers.map(&:name)
-  require 'omniauth-kerberos' if provider_names.include?('kerberos')
-end
-
-module OmniAuth
-  module Strategies
-    autoload :Bitbucket, Rails.root.join('lib', 'omni_auth', 'strategies', 'bitbucket')
-    autoload :Jwt, Rails.root.join('lib', 'omni_auth', 'strategies', 'jwt')
-  end
+  Gitlab::Auth.omniauth_setup_providers(provider_names)
 end
diff --git a/lib/gitlab/auth.rb b/lib/gitlab/auth.rb
index 8e5a985edd7f374afb204cf505a6b05d0dd3e81a..0f7a7b0ce8dff008af0cf008b04ba0039099d63d 100644
--- a/lib/gitlab/auth.rb
+++ b/lib/gitlab/auth.rb
@@ -14,6 +14,25 @@ module Gitlab
     DEFAULT_SCOPES = [:api].freeze
 
     class << self
+      def omniauth_customized_providers
+        @omniauth_customized_providers ||= %w[bitbucket jwt]
+      end
+
+      def omniauth_setup_providers(provider_names)
+        provider_names.each do |provider|
+          omniauth_setup_a_provider(provider)
+        end
+      end
+
+      def omniauth_setup_a_provider(provider)
+        case provider
+        when 'kerberos'
+          require 'omniauth-kerberos'
+        when *omniauth_customized_providers
+          require_dependency "omni_auth/strategies/#{provider}"
+        end
+      end
+
       def find_for_git_client(login, password, project:, ip:)
         raise "Must provide an IP for rate limiting" if ip.nil?
 
diff --git a/lib/omni_auth/strategies/jwt.rb b/lib/omni_auth/strategies/jwt.rb
index 2349b2a28aa5c498dadd0d186a31512efb59ae08..ebdb5c7faf0b65901ce3b7089e6865ec75aded07 100644
--- a/lib/omni_auth/strategies/jwt.rb
+++ b/lib/omni_auth/strategies/jwt.rb
@@ -3,7 +3,7 @@ require 'jwt'
 
 module OmniAuth
   module Strategies
-    class JWT
+    class Jwt
       ClaimInvalid = Class.new(StandardError)
 
       include OmniAuth::Strategy
@@ -56,7 +56,5 @@ module OmniAuth
         fail! :claim_invalid, e
       end
     end
-
-    class Jwt < JWT; end
   end
 end
diff --git a/lib/rspec_flaky/listener.rb b/lib/rspec_flaky/listener.rb
index 5b5e4f7c7de8a726c49c66bed7de94b96eb23cca..9cd0c38cb5547f7da2ce9a9245cd82c17821ee2d 100644
--- a/lib/rspec_flaky/listener.rb
+++ b/lib/rspec_flaky/listener.rb
@@ -1,10 +1,10 @@
 require 'json'
 
-require_relative 'config'
-require_relative 'example'
-require_relative 'flaky_example'
-require_relative 'flaky_examples_collection'
-require_relative 'report'
+require_dependency 'rspec_flaky/config'
+require_dependency 'rspec_flaky/example'
+require_dependency 'rspec_flaky/flaky_example'
+require_dependency 'rspec_flaky/flaky_examples_collection'
+require_dependency 'rspec_flaky/report'
 
 module RspecFlaky
   class Listener
diff --git a/lib/rspec_flaky/report.rb b/lib/rspec_flaky/report.rb
index a8730d3b7c71bc18703d29373054bd2a307085f0..1c362fdd20d453f2f9e4147e7403e094f7190109 100644
--- a/lib/rspec_flaky/report.rb
+++ b/lib/rspec_flaky/report.rb
@@ -1,8 +1,8 @@
 require 'json'
 require 'time'
 
-require_relative 'config'
-require_relative 'flaky_examples_collection'
+require_dependency 'rspec_flaky/config'
+require_dependency 'rspec_flaky/flaky_examples_collection'
 
 module RspecFlaky
   # This class is responsible for loading/saving JSON reports, and pruning
diff --git a/lib/tasks/lint.rake b/lib/tasks/lint.rake
index fe5032cae1822d3601cfb4d7d16757289fe14503..8b86a5c72a56fece9c484fdd83f4347b10b67d7d 100644
--- a/lib/tasks/lint.rake
+++ b/lib/tasks/lint.rake
@@ -30,11 +30,12 @@ unless Rails.env.production?
         lint:static_verification
       ].each do |task|
         pid = Process.fork do
-          rd, wr = IO.pipe
+          rd_out, wr_out = IO.pipe
+          rd_err, wr_err = IO.pipe
           stdout = $stdout.dup
           stderr = $stderr.dup
-          $stdout.reopen(wr)
-          $stderr.reopen(wr)
+          $stdout.reopen(wr_out)
+          $stderr.reopen(wr_err)
 
           begin
             begin
@@ -48,14 +49,13 @@ unless Rails.env.production?
           ensure
             $stdout.reopen(stdout)
             $stderr.reopen(stderr)
-            wr.close
+            wr_out.close
+            wr_err.close
 
-            if msg
-              warn "\n#{msg}\n\n"
-              IO.copy_stream(rd, $stderr)
-            else
-              IO.copy_stream(rd, $stdout)
-            end
+            warn "\n#{msg}\n\n" if msg
+
+            IO.copy_stream(rd_out, $stdout)
+            IO.copy_stream(rd_err, $stderr)
           end
         end
 
diff --git a/scripts/prune-old-flaky-specs b/scripts/prune-old-flaky-specs
index f7451fbd4282c9eaa369ddde3f06215606405e2e..a00a334fd6e03ba0cd456c1ffdfc3e16c73be4c5 100755
--- a/scripts/prune-old-flaky-specs
+++ b/scripts/prune-old-flaky-specs
@@ -5,7 +5,11 @@
 # gem manually on the CI
 require 'rubygems'
 
-require_relative '../lib/rspec_flaky/report'
+# In newer Ruby, alias_method is not private then we don't need __send__
+singleton_class.__send__(:alias_method, :require_dependency, :require) # rubocop:disable GitlabSecurity/PublicSend
+$:.unshift(File.expand_path('../lib', __dir__))
+
+require 'rspec_flaky/report'
 
 report_file = ARGV.shift
 unless report_file
diff --git a/spec/lib/omni_auth/strategies/jwt_spec.rb b/spec/lib/omni_auth/strategies/jwt_spec.rb
index 23485fbcb1882bda3d233903052526a74d6c5713..88d6d0b559a68fd093c37b7dc6afce59d1f70abc 100644
--- a/spec/lib/omni_auth/strategies/jwt_spec.rb
+++ b/spec/lib/omni_auth/strategies/jwt_spec.rb
@@ -43,7 +43,7 @@ describe OmniAuth::Strategies::Jwt do
       end
 
       it 'raises error' do
-        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::JWT::ClaimInvalid)
+        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::Jwt::ClaimInvalid)
       end
     end
 
@@ -61,7 +61,7 @@ describe OmniAuth::Strategies::Jwt do
       end
 
       it 'raises error' do
-        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::JWT::ClaimInvalid)
+        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::Jwt::ClaimInvalid)
       end
     end
 
@@ -80,7 +80,7 @@ describe OmniAuth::Strategies::Jwt do
       end
 
       it 'raises error' do
-        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::JWT::ClaimInvalid)
+        expect { strategy.decoded }.to raise_error(OmniAuth::Strategies::Jwt::ClaimInvalid)
       end
     end
   end