[rubygems/rubygems] Bump vendored net-http-persistent to 4.0.2

https://github.com/rubygems/rubygems/commit/b0edf39083

lib/bundler/vendor/net-http-persistent/lib/net/http/persistent.rb

@@ -174,7 +174,7 @@ class Bundler::Persistent::Net::HTTP::Persistent
   ##
   # The version of Bundler::Persistent::Net::HTTP::Persistent you are using
 
-  VERSION = '4.0.1'
+  VERSION = '4.0.2'
 
   ##
   # Error class for errors raised by Bundler::Persistent::Net::HTTP::Persistent.  Various

lib/bundler/vendor/net-http-persistent/lib/net/http/persistent/connection.rb

@@ -25,6 +25,7 @@ class Bundler::Persistent::Net::HTTP::Persistent::Connection # :nodoc:
   ensure
     reset
   end
+  alias_method :close, :finish
 
   def reset
     @last_use = Bundler::Persistent::Net::HTTP::Persistent::EPOCH

lib/bundler/vendor/net-http-persistent/lib/net/http/persistent/pool.rb

@@ -11,20 +11,32 @@ class Bundler::Persistent::Net::HTTP::Persistent::Pool < Bundler::ConnectionPool
   end
 
   def checkin net_http_args
-    stack = Thread.current[@key][net_http_args] ||= []
+    if net_http_args.is_a?(Hash) && net_http_args.size == 1 && net_http_args[:force]
+      # Bundler::ConnectionPool 2.4+ calls `checkin(force: true)` after fork.
+      # When this happens, we should remove all connections from Thread.current
+      if stacks = Thread.current[@key]
+        stacks.each do |http_args, connections|
+          connections.each do |conn|
+            @available.push conn, connection_args: http_args
+          end
+          connections.clear
+        end
+      end
+    else
+      stack = Thread.current[@key][net_http_args] ||= []
 
-    raise Bundler::ConnectionPool::Error, 'no connections are checked out' if
-      stack.empty?
+      raise Bundler::ConnectionPool::Error, 'no connections are checked out' if
+        stack.empty?
 
-    conn = stack.pop
+      conn = stack.pop
 
-    if stack.empty?
-      @available.push conn, connection_args: net_http_args
+      if stack.empty?
+        @available.push conn, connection_args: net_http_args
 
-      Thread.current[@key].delete(net_http_args)
-      Thread.current[@key] = nil if Thread.current[@key].empty?
+        Thread.current[@key].delete(net_http_args)
+        Thread.current[@key] = nil if Thread.current[@key].empty?
+      end
     end
-
     nil
   end