5 files changed, 25 insertions, 23 deletions
diff --git a/lib/bundler/cli.rb b/lib/bundler/cli.rb
index 51f71af501..c0c7d9f899 100644
--- a/lib/bundler/cli.rb
+++ b/lib/bundler/cli.rb
@@ -130,7 +130,7 @@ module Bundler
 
       if man_pages.include?(command)
         man_page = man_pages[command]
-        if Bundler.which("man") && !man_path.match?(%r{^file:/.+!/META-INF/jruby.home/.+})
+        if Bundler.which("man") && !man_path.match?(%r{^(?:file:/.+!|uri:classloader:)/META-INF/jruby.home/.+})
           Kernel.exec("man", man_page)
         else
           puts File.read("#{man_path}/#{File.basename(man_page)}.ronn")
diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index 1225cbe5cb..fc97f5ff25 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -1144,7 +1144,7 @@ An Array (#{env.inspect}) was passed in from #{caller[3]}
 
     ENV["BUNDLE_GEMFILE"] ||= File.expand_path(path)
     require_relative "rubygems/user_interaction"
-    require "bundler"
+    require_relative "rubygems/bundler_integration"
     begin
       Gem::DefaultUserInteraction.use_ui(ui) do
         Bundler.ui.silence do
diff --git a/lib/rubygems/bundler_integration.rb b/lib/rubygems/bundler_integration.rb
new file mode 100644
index 0000000000..28228e2398
--- /dev/null
+++ b/lib/rubygems/bundler_integration.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require "bundler/version"
+
+if Bundler::VERSION > "2.6.9"
+  require "bundler"
+else
+  previous_platforms = {}
+
+  platform_const_list = ["JAVA", "MSWIN", "MSWIN64", "MINGW", "X64_MINGW_LEGACY", "X64_MINGW", "UNIVERSAL_MINGW", "WINDOWS", "X64_LINUX", "X64_LINUX_MUSL"]
+
+  platform_const_list.each do |platform|
+    previous_platforms[platform] = Gem::Platform.const_get(platform)
+    Gem::Platform.send(:remove_const, platform)
+  end
+
+  require "bundler"
+
+  platform_const_list.each do |platform|
+    Gem::Platform.send(:remove_const, platform) if Gem::Platform.const_defined?(platform)
+    Gem::Platform.const_set(platform, previous_platforms[platform])
+  end
+end
diff --git a/lib/rubygems/ssl_certs/rubygems.org/GlobalSignRootCA_R3.pem b/lib/rubygems/ssl_certs/rubygems.org/GlobalSign.pem
index 8afb219058..8afb219058 100644
--- a/lib/rubygems/ssl_certs/rubygems.org/GlobalSignRootCA_R3.pem
+++ b/lib/rubygems/ssl_certs/rubygems.org/GlobalSign.pem
diff --git a/lib/rubygems/ssl_certs/rubygems.org/GlobalSignRootCA.pem b/lib/rubygems/ssl_certs/rubygems.org/GlobalSignRootCA.pem
deleted file mode 100644
index f4ce4ca43d..0000000000
--- a/lib/rubygems/ssl_certs/rubygems.org/GlobalSignRootCA.pem
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDdTCCAl2gAwIBAgILBAAAAAABFUtaw5QwDQYJKoZIhvcNAQEFBQAwVzELMAkG
-A1UEBhMCQkUxGTAXBgNVBAoTEEdsb2JhbFNpZ24gbnYtc2ExEDAOBgNVBAsTB1Jv
-b3QgQ0ExGzAZBgNVBAMTEkdsb2JhbFNpZ24gUm9vdCBDQTAeFw05ODA5MDExMjAw
-MDBaFw0yODAxMjgxMjAwMDBaMFcxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9i
-YWxTaWduIG52LXNhMRAwDgYDVQQLEwdSb290IENBMRswGQYDVQQDExJHbG9iYWxT
-aWduIFJvb3QgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDaDuaZ
-jc6j40+Kfvvxi4Mla+pIH/EqsLmVEQS98GPR4mdmzxzdzxtIK+6NiY6arymAZavp
-xy0Sy6scTHAHoT0KMM0VjU/43dSMUBUc71DuxC73/OlS8pF94G3VNTCOXkNz8kHp
-1Wrjsok6Vjk4bwY8iGlbKk3Fp1S4bInMm/k8yuX9ifUSPJJ4ltbcdG6TRGHRjcdG
-snUOhugZitVtbNV4FpWi6cgKOOvyJBNPc1STE4U6G7weNLWLBYy5d4ux2x8gkasJ
-U26Qzns3dLlwR5EiUWMWea6xrkEmCMgZK9FGqkjWZCrXgzT/LCrBbBlDSgeF59N8
-9iFo7+ryUp9/k5DPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8E
-BTADAQH/MB0GA1UdDgQWBBRge2YaRQ2XyolQL30EzTSo//z9SzANBgkqhkiG9w0B
-AQUFAAOCAQEA1nPnfE920I2/7LqivjTFKDK1fPxsnCwrvQmeU79rXqoRSLblCKOz
-yj1hTdNGCbM+w6DjY1Ub8rrvrTnhQ7k4o+YviiY776BQVvnGCv04zcQLcFGUl5gE
-38NflNUVyRRBnMRddWQVDf9VMOyGj/8N7yy5Y0b2qvzfvGn9LhJIZJrglfCm7ymP
-AbEVtQwdpf5pLGkkeB6zpxxxYu7KyJesF12KwvhHhm4qxFYxldBniYUr+WymXUad
-DKqC5JlR3XC321Y9YeRq4VzW9v493kHMB65jUr9TU/Qr6cf9tveCX4XSQRjbgbME
-HMUfpIBvFSDJ3gyICh3WZlXi/EjJKSZp4A==
------END CERTIFICATE-----