diff --git a/lib/net/http.rb b/lib/net/http.rb
index 002e3cf10e..b602d2d0b0 100644
--- a/lib/net/http.rb
+++ b/lib/net/http.rb
@@ -22,6 +22,7 @@
 
 require 'net/protocol'
 require 'uri'
+require 'resolv'
 autoload :OpenSSL, 'openssl'
 
 module Net   #:nodoc:
@@ -132,7 +133,7 @@ module Net   #:nodoc:
   #   puts res.class.name # => 'HTTPOK'
   #
   #   # Body
-  #   puts res.body if res.response_body_permitted?
+  #   puts res.body
   #
   # === Following Redirection
   #
@@ -396,7 +397,7 @@ module Net   #:nodoc:
   class HTTP < Protocol
 
     # :stopdoc:
-    VERSION = "0.2.0"
+    VERSION = "0.3.0"
     Revision = %q$Revision$.split[1]
     HTTPVersion = '1.1'
     begin
@@ -697,6 +698,8 @@ module Net   #:nodoc:
       @continue_timeout = nil
       @max_retries = 1
       @debug_output = nil
+      @response_body_encoding = false
+      @ignore_eof = true
 
       @proxy_from_env = false
       @proxy_uri      = nil
@@ -744,6 +747,18 @@ module Net   #:nodoc:
     # The local port used to establish the connection.
     attr_accessor :local_port
 
+    # The encoding to use for the response body.  If Encoding, uses the
+    # specified encoding.  If other true value, tries to detect the response
+    # body encoding.
+    attr_reader :response_body_encoding
+
+    # Set the encoding to use for the response body.  If given a String, find
+    # the related Encoding.
+    def response_body_encoding=(value)
+      value = Encoding.find(value) if value.is_a?(String)
+      @response_body_encoding = value
+    end
+
     attr_writer :proxy_from_env
     attr_writer :proxy_address
     attr_writer :proxy_port
@@ -825,6 +840,10 @@ module Net   #:nodoc:
     # The default value is 2 seconds.
     attr_accessor :keep_alive_timeout
 
+    # Whether to ignore EOF when reading response bodies with defined
+    # Content-Length headers. For backwards compatibility, the default is true.
+    attr_accessor :ignore_eof
+
     # Returns true if the HTTP session has been started.
     def started?
       @started
@@ -1033,21 +1052,42 @@ module Net   #:nodoc:
           end
         end
         @ssl_context.set_params(ssl_parameters)
-        @ssl_context.session_cache_mode =
-          OpenSSL::SSL::SSLContext::SESSION_CACHE_CLIENT |
-          OpenSSL::SSL::SSLContext::SESSION_CACHE_NO_INTERNAL_STORE
-        @ssl_context.session_new_cb = proc {|sock, sess| @ssl_session = sess }
+        unless @ssl_context.session_cache_mode.nil? # a dummy method on JRuby
+          @ssl_context.session_cache_mode =
+              OpenSSL::SSL::SSLContext::SESSION_CACHE_CLIENT |
+                  OpenSSL::SSL::SSLContext::SESSION_CACHE_NO_INTERNAL_STORE
+        end
+        if @ssl_context.respond_to?(:session_new_cb) # not implemented under JRuby
+          @ssl_context.session_new_cb = proc {|sock, sess| @ssl_session = sess }
+        end
+
+        # Still do the post_connection_check below even if connecting
+        # to IP address
+        verify_hostname = @ssl_context.verify_hostname
+
+        # Server Name Indication (SNI) RFC 3546/6066
+        case @address
+        when Resolv::IPv4::Regex, Resolv::IPv6::Regex
+          # don't set SNI, as IP addresses in SNI is not valid
+          # per RFC 6066, section 3.
+
+          # Avoid openssl warning
+          @ssl_context.verify_hostname = false
+        else
+          ssl_host_address = @address
+        end
+
         debug "starting SSL for #{conn_addr}:#{conn_port}..."
         s = OpenSSL::SSL::SSLSocket.new(s, @ssl_context)
         s.sync_close = true
-        # Server Name Indication (SNI) RFC 3546
-        s.hostname = @address if s.respond_to? :hostname=
+        s.hostname = ssl_host_address if s.respond_to?(:hostname=) && ssl_host_address
+
         if @ssl_session and
            Process.clock_gettime(Process::CLOCK_REALTIME) < @ssl_session.time.to_f + @ssl_session.timeout
           s.session = @ssl_session
         end
         ssl_socket_connect(s, @open_timeout)
-        if (@ssl_context.verify_mode != OpenSSL::SSL::VERIFY_NONE) && @ssl_context.verify_hostname
+        if (@ssl_context.verify_mode != OpenSSL::SSL::VERIFY_NONE) && verify_hostname
           s.post_connection_check(@address)
         end
         debug "SSL established, protocol: #{s.ssl_version}, cipher: #{s.cipher[0]}"
@@ -1182,16 +1222,9 @@ module Net   #:nodoc:
       end
     end
 
-    # [Bug #12921]
-    if /linux|freebsd|darwin/ =~ RUBY_PLATFORM
-      ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE = true
-    else
-      ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE = false
-    end
-
     # The username of the proxy server, if one is configured.
     def proxy_user
-      if ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE && @proxy_from_env
+      if @proxy_from_env
         user = proxy_uri&.user
         unescape(user) if user
       else
@@ -1201,7 +1234,7 @@ module Net   #:nodoc:
 
     # The password of the proxy server, if one is configured.
     def proxy_pass
-      if ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE && @proxy_from_env
+      if @proxy_from_env
         pass = proxy_uri&.password
         unescape(pass) if pass
       else
@@ -1575,6 +1608,8 @@ module Net   #:nodoc:
           begin
             res = HTTPResponse.read_new(@socket)
             res.decode_content = req.decode_content
+            res.body_encoding = @response_body_encoding
+            res.ignore_eof = @ignore_eof
           end while res.kind_of?(HTTPInformation)
 
           res.uri = req.uri
diff --git a/lib/net/http/exceptions.rb b/lib/net/http/exceptions.rb
index da5f7a70fc..9c425cae16 100644
--- a/lib/net/http/exceptions.rb
+++ b/lib/net/http/exceptions.rb
@@ -1,33 +1,34 @@
 # frozen_string_literal: false
-# Net::HTTP exception class.
-# You cannot use Net::HTTPExceptions directly; instead, you must use
-# its subclasses.
-module Net::HTTPExceptions
-  def initialize(msg, res)   #:nodoc:
-    super msg
-    @response = res
-  end
-  attr_reader :response
-  alias data response    #:nodoc: obsolete
-end
-class Net::HTTPError < Net::ProtocolError
-  include Net::HTTPExceptions
-end
-class Net::HTTPRetriableError < Net::ProtoRetriableError
-  include Net::HTTPExceptions
-end
-class Net::HTTPServerException < Net::ProtoServerError
-  # We cannot use the name "HTTPServerError", it is the name of the response.
-  include Net::HTTPExceptions
-end
-
-# for compatibility
-Net::HTTPClientException = Net::HTTPServerException
-
-class Net::HTTPFatalError < Net::ProtoFatalError
-  include Net::HTTPExceptions
-end
-
 module Net
+  # Net::HTTP exception class.
+  # You cannot use Net::HTTPExceptions directly; instead, you must use
+  # its subclasses.
+  module HTTPExceptions
+    def initialize(msg, res)   #:nodoc:
+      super msg
+      @response = res
+    end
+    attr_reader :response
+    alias data response    #:nodoc: obsolete
+  end
+
+  class HTTPError < ProtocolError
+    include HTTPExceptions
+  end
+
+  class HTTPRetriableError < ProtoRetriableError
+    include HTTPExceptions
+  end
+
+  class HTTPClientException < ProtoServerError
+    include HTTPExceptions
+  end
+
+  class HTTPFatalError < ProtoFatalError
+    include HTTPExceptions
+  end
+
+  # We cannot use the name "HTTPServerError", it is the name of the response.
+  HTTPServerException = HTTPClientException # :nodoc:
   deprecate_constant(:HTTPServerException)
 end
diff --git a/lib/net/http/generic_request.rb b/lib/net/http/generic_request.rb
index 313de6ac92..d56835c76f 100644
--- a/lib/net/http/generic_request.rb
+++ b/lib/net/http/generic_request.rb
@@ -15,7 +15,8 @@ class Net::HTTPGenericRequest
 
     if URI === uri_or_path then
       raise ArgumentError, "not an HTTP URI" unless URI::HTTP === uri_or_path
-      raise ArgumentError, "no host component for URI" unless uri_or_path.hostname
+      hostname = uri_or_path.hostname
+      raise ArgumentError, "no host component for URI" unless (hostname && hostname.length > 0)
       @uri = uri_or_path.dup
       host = @uri.hostname.dup
       host << ":".freeze << @uri.port.to_s if @uri.port != @uri.default_port
diff --git a/lib/net/http/header.rb b/lib/net/http/header.rb
index a8901e79cb..b0ec4b0625 100644
--- a/lib/net/http/header.rb
+++ b/lib/net/http/header.rb
@@ -338,9 +338,10 @@ module Net::HTTPHeader
   # fits inside the full entity body, as range of byte offsets.
   def content_range
     return nil unless @header['content-range']
-    m = %r<bytes\s+(\d+)-(\d+)/(\d+|\*)>i.match(self['Content-Range']) or
+    m = %r<\A\s*(\w+)\s+(\d+)-(\d+)/(\d+|\*)>.match(self['Content-Range']) or
         raise Net::HTTPHeaderSyntaxError, 'wrong Content-Range format'
-    m[1].to_i .. m[2].to_i
+    return unless m[1] == 'bytes'
+    m[2].to_i .. m[3].to_i
   end
 
   # The length of the range represented in Content-Range: header.
diff --git a/lib/net/http/net-http.gemspec b/lib/net/http/net-http.gemspec
index dd4fc2b17e..a7f122fc0e 100644
--- a/lib/net/http/net-http.gemspec
+++ b/lib/net/http/net-http.gemspec
@@ -30,6 +30,5 @@ Gem::Specification.new do |spec|
   spec.bindir        = "exe"
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "net-protocol"
   spec.add_dependency "uri"
 end
diff --git a/lib/net/http/response.rb b/lib/net/http/response.rb
index 08eaeb2cac..f8b522f1ff 100644
--- a/lib/net/http/response.rb
+++ b/lib/net/http/response.rb
@@ -84,6 +84,8 @@ class Net::HTTPResponse
     @read = false
     @uri  = nil
     @decode_content = false
+    @body_encoding = false
+    @ignore_eof = true
   end
 
   # The HTTP version supported by the server.
@@ -106,6 +108,22 @@ class Net::HTTPResponse
   # Accept-Encoding header from the user.
   attr_accessor :decode_content
 
+  # The encoding to use for the response body. If Encoding, use that encoding.
+  # If other true value, attempt to detect the appropriate encoding, and use
+  # that.
+  attr_reader :body_encoding
+
+  # Set the encoding to use for the response body.  If given a String, find
+  # the related Encoding.
+  def body_encoding=(value)
+    value = Encoding.find(value) if value.is_a?(String)
+    @body_encoding = value
+  end
+
+  # Whether to ignore EOF when reading bodies with a specified Content-Length
+  # header.
+  attr_accessor :ignore_eof
+
   def inspect
     "#<#{self.class} #{@code} #{@message} readbody=#{@read}>"
   end
@@ -214,6 +232,17 @@ class Net::HTTPResponse
     end
     @read = true
 
+    case enc = @body_encoding
+    when Encoding, false, nil
+      # Encoding: force given encoding
+      # false/nil: do not force encoding
+    else
+      # other value: detect encoding from body
+      enc = detect_encoding(@body)
+    end
+
+    @body.force_encoding(enc) if enc
+
     @body
   end
 
@@ -245,6 +274,141 @@ class Net::HTTPResponse
 
   private
 
+  # :nodoc:
+  def detect_encoding(str, encoding=nil)
+    if encoding
+    elsif encoding = type_params['charset']
+    elsif encoding = check_bom(str)
+    else
+      encoding = case content_type&.downcase
+      when %r{text/x(?:ht)?ml|application/(?:[^+]+\+)?xml}
+        /\A<xml[ \t\r\n]+
+          version[ \t\r\n]*=[ \t\r\n]*(?:"[0-9.]+"|'[0-9.]*')[ \t\r\n]+
+          encoding[ \t\r\n]*=[ \t\r\n]*
+          (?:"([A-Za-z][\-A-Za-z0-9._]*)"|'([A-Za-z][\-A-Za-z0-9._]*)')/x =~ str
+        encoding = $1 || $2 || Encoding::UTF_8
+      when %r{text/html.*}
+        sniff_encoding(str)
+      end
+    end
+    return encoding
+  end
+
+  # :nodoc:
+  def sniff_encoding(str, encoding=nil)
+    # the encoding sniffing algorithm
+    # http://www.w3.org/TR/html5/parsing.html#determining-the-character-encoding
+    if enc = scanning_meta(str)
+      enc
+    # 6. last visited page or something
+    # 7. frequency
+    elsif str.ascii_only?
+      Encoding::US_ASCII
+    elsif str.dup.force_encoding(Encoding::UTF_8).valid_encoding?
+      Encoding::UTF_8
+    end
+    # 8. implementation-defined or user-specified
+  end
+
+  # :nodoc:
+  def check_bom(str)
+    case str.byteslice(0, 2)
+    when "\xFE\xFF"
+      return Encoding::UTF_16BE
+    when "\xFF\xFE"
+      return Encoding::UTF_16LE
+    end
+    if "\xEF\xBB\xBF" == str.byteslice(0, 3)
+      return Encoding::UTF_8
+    end
+    nil
+  end
+
+  # :nodoc:
+  def scanning_meta(str)
+    require 'strscan'
+    ss = StringScanner.new(str)
+    if ss.scan_until(/<meta[\t\n\f\r ]*/)
+      attrs = {} # attribute_list
+      got_pragma = false
+      need_pragma = nil
+      charset = nil
+
+      # step: Attributes
+      while attr = get_attribute(ss)
+        name, value = *attr
+        next if attrs[name]
+        attrs[name] = true
+        case name
+        when 'http-equiv'
+          got_pragma = true if value == 'content-type'
+        when 'content'
+          encoding = extracting_encodings_from_meta_elements(value)
+          unless charset
+            charset = encoding
+          end
+          need_pragma = true
+        when 'charset'
+          need_pragma = false
+          charset = value
+        end
+      end
+
+      # step: Processing
+      return if need_pragma.nil?
+      return if need_pragma && !got_pragma
+
+      charset = Encoding.find(charset) rescue nil
+      return unless charset
+      charset = Encoding::UTF_8 if charset == Encoding::UTF_16
+      return charset # tentative
+    end
+    nil
+  end
+
+  def get_attribute(ss)
+    ss.scan(/[\t\n\f\r \/]*/)
+    if ss.peek(1) == '>'
+      ss.getch
+      return nil
+    end
+    name = ss.scan(/[^=\t\n\f\r \/>]*/)
+    name.downcase!
+    raise if name.empty?
+    ss.skip(/[\t\n\f\r ]*/)
+    if ss.getch != '='
+      value = ''
+      return [name, value]
+    end
+    ss.skip(/[\t\n\f\r ]*/)
+    case ss.peek(1)
+    when '"'
+      ss.getch
+      value = ss.scan(/[^"]+/)
+      value.downcase!
+      ss.getch
+    when "'"
+      ss.getch
+      value = ss.scan(/[^']+/)
+      value.downcase!
+      ss.getch
+    when '>'
+      value = ''
+    else
+      value = ss.scan(/[^\t\n\f\r >]+/)
+      value.downcase!
+    end
+    [name, value]
+  end
+
+  def extracting_encodings_from_meta_elements(value)
+    # http://dev.w3.org/html5/spec/fetching-resources.html#algorithm-for-extracting-an-encoding-from-a-meta-element
+    if /charset[\t\n\f\r ]*=(?:"([^"]*)"|'([^']*)'|["']|\z|([^\t\n\f\r ;]+))/i =~ value
+      return $1 || $2 || $3
+    end
+    return nil
+  end
+
   ##
   # Checks for a supported Content-Encoding header and yields an Inflate
   # wrapper for this response's socket when zlib is present.  If the
@@ -272,6 +436,9 @@ class Net::HTTPResponse
       ensure
         begin
           inflate_body_io.finish
+          if self['content-length']
+            self['content-length'] = inflate_body_io.bytes_inflated.to_s
+          end
         rescue => err
           # Ignore #finish's error if there is an exception from yield
           raise err if success
@@ -297,7 +464,7 @@ class Net::HTTPResponse
 
       clen = content_length()
       if clen
-        @socket.read clen, dest, true   # ignore EOF
+        @socket.read clen, dest, @ignore_eof
         return
       end
       clen = range_length()
@@ -373,6 +540,14 @@ class Net::HTTPResponse
       @inflate.finish
     end
 
+    ##
+    # The number of bytes inflated, used to update the Content-Length of
+    # the response.
+
+    def bytes_inflated
+      @inflate.total_out
+    end
+
     ##
     # Returns a Net::ReadAdapter that inflates each read chunk into +dest+.
     #
diff --git a/lib/net/http/responses.rb b/lib/net/http/responses.rb
index 50352032df..02a2fdaa4c 100644
--- a/lib/net/http/responses.rb
+++ b/lib/net/http/responses.rb
@@ -1,231 +1,238 @@
 # frozen_string_literal: true
-# :stopdoc:
+#--
 # https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
-class Net::HTTPUnknownResponse < Net::HTTPResponse
-  HAS_BODY = true
-  EXCEPTION_TYPE = Net::HTTPError
-end
-class Net::HTTPInformation < Net::HTTPResponse           # 1xx
-  HAS_BODY = false
-  EXCEPTION_TYPE = Net::HTTPError
-end
-class Net::HTTPSuccess < Net::HTTPResponse               # 2xx
-  HAS_BODY = true
-  EXCEPTION_TYPE = Net::HTTPError
-end
-class Net::HTTPRedirection < Net::HTTPResponse           # 3xx
-  HAS_BODY = true
-  EXCEPTION_TYPE = Net::HTTPRetriableError
-end
-class Net::HTTPClientError < Net::HTTPResponse           # 4xx
-  HAS_BODY = true
-  EXCEPTION_TYPE = Net::HTTPClientException   # for backward compatibility
-end
-class Net::HTTPServerError < Net::HTTPResponse           # 5xx
-  HAS_BODY = true
-  EXCEPTION_TYPE = Net::HTTPFatalError    # for backward compatibility
-end
 
-class Net::HTTPContinue < Net::HTTPInformation           # 100
-  HAS_BODY = false
-end
-class Net::HTTPSwitchProtocol < Net::HTTPInformation     # 101
-  HAS_BODY = false
-end
-class Net::HTTPProcessing < Net::HTTPInformation         # 102
-  HAS_BODY = false
-end
-class Net::HTTPEarlyHints < Net::HTTPInformation         # 103 - RFC 8297
-  HAS_BODY = false
-end
+module Net
+  # :stopdoc:
 
-class Net::HTTPOK < Net::HTTPSuccess                            # 200
-  HAS_BODY = true
-end
-class Net::HTTPCreated < Net::HTTPSuccess                       # 201
-  HAS_BODY = true
-end
-class Net::HTTPAccepted < Net::HTTPSuccess                      # 202
-  HAS_BODY = true
-end
-class Net::HTTPNonAuthoritativeInformation < Net::HTTPSuccess   # 203
-  HAS_BODY = true
-end
-class Net::HTTPNoContent < Net::HTTPSuccess                     # 204
-  HAS_BODY = false
-end
-class Net::HTTPResetContent < Net::HTTPSuccess                  # 205
-  HAS_BODY = false
-end
-class Net::HTTPPartialContent < Net::HTTPSuccess                # 206
-  HAS_BODY = true
-end
-class Net::HTTPMultiStatus < Net::HTTPSuccess                   # 207 - RFC 4918
-  HAS_BODY = true
-end
-class Net::HTTPAlreadyReported < Net::HTTPSuccess               # 208 - RFC 5842
-  HAS_BODY = true
-end
-class Net::HTTPIMUsed < Net::HTTPSuccess                        # 226 - RFC 3229
-  HAS_BODY = true
-end
+  class HTTPUnknownResponse < HTTPResponse
+    HAS_BODY = true
+    EXCEPTION_TYPE = HTTPError                  #
+  end
+  class HTTPInformation < HTTPResponse          # 1xx
+    HAS_BODY = false
+    EXCEPTION_TYPE = HTTPError                  #
+  end
+  class HTTPSuccess < HTTPResponse              # 2xx
+    HAS_BODY = true
+    EXCEPTION_TYPE = HTTPError                  #
+  end
+  class HTTPRedirection < HTTPResponse          # 3xx
+    HAS_BODY = true
+    EXCEPTION_TYPE = HTTPRetriableError         #
+  end
+  class HTTPClientError < HTTPResponse          # 4xx
+    HAS_BODY = true
+    EXCEPTION_TYPE = HTTPClientException        #
+  end
+  class HTTPServerError < HTTPResponse          # 5xx
+    HAS_BODY = true
+    EXCEPTION_TYPE = HTTPFatalError             #
+  end
 
-class Net::HTTPMultipleChoices < Net::HTTPRedirection    # 300
-  HAS_BODY = true
-end
-Net::HTTPMultipleChoice = Net::HTTPMultipleChoices
-class Net::HTTPMovedPermanently < Net::HTTPRedirection   # 301
-  HAS_BODY = true
-end
-class Net::HTTPFound < Net::HTTPRedirection              # 302
-  HAS_BODY = true
-end
-Net::HTTPMovedTemporarily = Net::HTTPFound
-class Net::HTTPSeeOther < Net::HTTPRedirection           # 303
-  HAS_BODY = true
-end
-class Net::HTTPNotModified < Net::HTTPRedirection        # 304
-  HAS_BODY = false
-end
-class Net::HTTPUseProxy < Net::HTTPRedirection           # 305
-  HAS_BODY = false
-end
-# 306 Switch Proxy - no longer unused
-class Net::HTTPTemporaryRedirect < Net::HTTPRedirection  # 307
-  HAS_BODY = true
-end
-class Net::HTTPPermanentRedirect < Net::HTTPRedirection  # 308
-  HAS_BODY = true
-end
+  class HTTPContinue < HTTPInformation          # 100
+    HAS_BODY = false
+  end
+  class HTTPSwitchProtocol < HTTPInformation    # 101
+    HAS_BODY = false
+  end
+  class HTTPProcessing < HTTPInformation        # 102
+    HAS_BODY = false
+  end
+  class HTTPEarlyHints < HTTPInformation        # 103 - RFC 8297
+    HAS_BODY = false
+  end
 
-class Net::HTTPBadRequest < Net::HTTPClientError                    # 400
-  HAS_BODY = true
-end
-class Net::HTTPUnauthorized < Net::HTTPClientError                  # 401
-  HAS_BODY = true
-end
-class Net::HTTPPaymentRequired < Net::HTTPClientError               # 402
-  HAS_BODY = true
-end
-class Net::HTTPForbidden < Net::HTTPClientError                     # 403
-  HAS_BODY = true
-end
-class Net::HTTPNotFound < Net::HTTPClientError                      # 404
-  HAS_BODY = true
-end
-class Net::HTTPMethodNotAllowed < Net::HTTPClientError              # 405
-  HAS_BODY = true
-end
-class Net::HTTPNotAcceptable < Net::HTTPClientError                 # 406
-  HAS_BODY = true
-end
-class Net::HTTPProxyAuthenticationRequired < Net::HTTPClientError   # 407
-  HAS_BODY = true
-end
-class Net::HTTPRequestTimeout < Net::HTTPClientError                # 408
-  HAS_BODY = true
-end
-Net::HTTPRequestTimeOut = Net::HTTPRequestTimeout
-class Net::HTTPConflict < Net::HTTPClientError                      # 409
-  HAS_BODY = true
-end
-class Net::HTTPGone < Net::HTTPClientError                          # 410
-  HAS_BODY = true
-end
-class Net::HTTPLengthRequired < Net::HTTPClientError                # 411
-  HAS_BODY = true
-end
-class Net::HTTPPreconditionFailed < Net::HTTPClientError            # 412
-  HAS_BODY = true
-end
-class Net::HTTPPayloadTooLarge < Net::HTTPClientError               # 413
-  HAS_BODY = true
-end
-Net::HTTPRequestEntityTooLarge = Net::HTTPPayloadTooLarge
-class Net::HTTPURITooLong < Net::HTTPClientError                    # 414
-  HAS_BODY = true
-end
-Net::HTTPRequestURITooLong = Net::HTTPURITooLong
-Net::HTTPRequestURITooLarge = Net::HTTPRequestURITooLong
-class Net::HTTPUnsupportedMediaType < Net::HTTPClientError          # 415
-  HAS_BODY = true
-end
-class Net::HTTPRangeNotSatisfiable < Net::HTTPClientError           # 416
-  HAS_BODY = true
-end
-Net::HTTPRequestedRangeNotSatisfiable = Net::HTTPRangeNotSatisfiable
-class Net::HTTPExpectationFailed < Net::HTTPClientError             # 417
-  HAS_BODY = true
-end
-# 418 I'm a teapot - RFC 2324; a joke RFC
-# 420 Enhance Your Calm - Twitter
-class Net::HTTPMisdirectedRequest < Net::HTTPClientError            # 421 - RFC 7540
-  HAS_BODY = true
-end
-class Net::HTTPUnprocessableEntity < Net::HTTPClientError           # 422 - RFC 4918
-  HAS_BODY = true
-end
-class Net::HTTPLocked < Net::HTTPClientError                        # 423 - RFC 4918
-  HAS_BODY = true
-end
-class Net::HTTPFailedDependency < Net::HTTPClientError              # 424 - RFC 4918
-  HAS_BODY = true
-end
-# 425 Unordered Collection - existed only in draft
-class Net::HTTPUpgradeRequired < Net::HTTPClientError               # 426 - RFC 2817
-  HAS_BODY = true
-end
-class Net::HTTPPreconditionRequired < Net::HTTPClientError          # 428 - RFC 6585
-  HAS_BODY = true
-end
-class Net::HTTPTooManyRequests < Net::HTTPClientError               # 429 - RFC 6585
-  HAS_BODY = true
-end
-class Net::HTTPRequestHeaderFieldsTooLarge < Net::HTTPClientError   # 431 - RFC 6585
-  HAS_BODY = true
-end
-class Net::HTTPUnavailableForLegalReasons < Net::HTTPClientError    # 451 - RFC 7725
-  HAS_BODY = true
-end
-# 444 No Response - Nginx
-# 449 Retry With - Microsoft
-# 450 Blocked by Windows Parental Controls - Microsoft
-# 499 Client Closed Request - Nginx
+  class HTTPOK < HTTPSuccess                            # 200
+    HAS_BODY = true
+  end
+  class HTTPCreated < HTTPSuccess                       # 201
+    HAS_BODY = true
+  end
+  class HTTPAccepted < HTTPSuccess                      # 202
+    HAS_BODY = true
+  end
+  class HTTPNonAuthoritativeInformation < HTTPSuccess   # 203
+    HAS_BODY = true
+  end
+  class HTTPNoContent < HTTPSuccess                     # 204
+    HAS_BODY = false
+  end
+  class HTTPResetContent < HTTPSuccess                  # 205
+    HAS_BODY = false
+  end
+  class HTTPPartialContent < HTTPSuccess                # 206
+    HAS_BODY = true
+  end
+  class HTTPMultiStatus < HTTPSuccess                   # 207 - RFC 4918
+    HAS_BODY = true
+  end
+  class HTTPAlreadyReported < HTTPSuccess               # 208 - RFC 5842
+    HAS_BODY = true
+  end
+  class HTTPIMUsed < HTTPSuccess                        # 226 - RFC 3229
+    HAS_BODY = true
+  end
 
-class Net::HTTPInternalServerError < Net::HTTPServerError           # 500
-  HAS_BODY = true
-end
-class Net::HTTPNotImplemented < Net::HTTPServerError                # 501
-  HAS_BODY = true
-end
-class Net::HTTPBadGateway < Net::HTTPServerError                    # 502
-  HAS_BODY = true
-end
-class Net::HTTPServiceUnavailable < Net::HTTPServerError            # 503
-  HAS_BODY = true
-end
-class Net::HTTPGatewayTimeout < Net::HTTPServerError                # 504
-  HAS_BODY = true
-end
-Net::HTTPGatewayTimeOut = Net::HTTPGatewayTimeout
-class Net::HTTPVersionNotSupported < Net::HTTPServerError           # 505
-  HAS_BODY = true
-end
-class Net::HTTPVariantAlsoNegotiates < Net::HTTPServerError         # 506
-  HAS_BODY = true
-end
-class Net::HTTPInsufficientStorage < Net::HTTPServerError           # 507 - RFC 4918
-  HAS_BODY = true
-end
-class Net::HTTPLoopDetected < Net::HTTPServerError                  # 508 - RFC 5842
-  HAS_BODY = true
-end
-# 509 Bandwidth Limit Exceeded - Apache bw/limited extension
-class Net::HTTPNotExtended < Net::HTTPServerError                   # 510 - RFC 2774
-  HAS_BODY = true
-end
-class Net::HTTPNetworkAuthenticationRequired < Net::HTTPServerError # 511 - RFC 6585
-  HAS_BODY = true
+  class HTTPMultipleChoices < HTTPRedirection   # 300
+    HAS_BODY = true
+  end
+  HTTPMultipleChoice = HTTPMultipleChoices
+  class HTTPMovedPermanently < HTTPRedirection  # 301
+    HAS_BODY = true
+  end
+  class HTTPFound < HTTPRedirection             # 302
+    HAS_BODY = true
+  end
+  HTTPMovedTemporarily = HTTPFound
+  class HTTPSeeOther < HTTPRedirection          # 303
+    HAS_BODY = true
+  end
+  class HTTPNotModified < HTTPRedirection       # 304
+    HAS_BODY = false
+  end
+  class HTTPUseProxy < HTTPRedirection          # 305
+    HAS_BODY = false
+  end
+  # 306 Switch Proxy - no longer unused
+  class HTTPTemporaryRedirect < HTTPRedirection # 307
+    HAS_BODY = true
+  end
+  class HTTPPermanentRedirect < HTTPRedirection # 308
+    HAS_BODY = true
+  end
+
+  class HTTPBadRequest < HTTPClientError                    # 400
+    HAS_BODY = true
+  end
+  class HTTPUnauthorized < HTTPClientError                  # 401
+    HAS_BODY = true
+  end
+  class HTTPPaymentRequired < HTTPClientError               # 402
+    HAS_BODY = true
+  end
+  class HTTPForbidden < HTTPClientError                     # 403
+    HAS_BODY = true
+  end
+  class HTTPNotFound < HTTPClientError                      # 404
+    HAS_BODY = true
+  end
+  class HTTPMethodNotAllowed < HTTPClientError              # 405
+    HAS_BODY = true
+  end
+  class HTTPNotAcceptable < HTTPClientError                 # 406
+    HAS_BODY = true
+  end
+  class HTTPProxyAuthenticationRequired < HTTPClientError   # 407
+    HAS_BODY = true
+  end
+  class HTTPRequestTimeout < HTTPClientError                # 408
+    HAS_BODY = true
+  end
+  HTTPRequestTimeOut = HTTPRequestTimeout
+  class HTTPConflict < HTTPClientError                      # 409
+    HAS_BODY = true
+  end
+  class HTTPGone < HTTPClientError                          # 410
+    HAS_BODY = true
+  end
+  class HTTPLengthRequired < HTTPClientError                # 411
+    HAS_BODY = true
+  end
+  class HTTPPreconditionFailed < HTTPClientError            # 412
+    HAS_BODY = true
+  end
+  class HTTPPayloadTooLarge < HTTPClientError               # 413
+    HAS_BODY = true
+  end
+  HTTPRequestEntityTooLarge = HTTPPayloadTooLarge
+  class HTTPURITooLong < HTTPClientError                    # 414
+    HAS_BODY = true
+  end
+  HTTPRequestURITooLong = HTTPURITooLong
+  HTTPRequestURITooLarge = HTTPRequestURITooLong
+  class HTTPUnsupportedMediaType < HTTPClientError          # 415
+    HAS_BODY = true
+  end
+  class HTTPRangeNotSatisfiable < HTTPClientError           # 416
+    HAS_BODY = true
+  end
+  HTTPRequestedRangeNotSatisfiable = HTTPRangeNotSatisfiable
+  class HTTPExpectationFailed < HTTPClientError             # 417
+    HAS_BODY = true
+  end
+  # 418 I'm a teapot - RFC 2324; a joke RFC
+  # 420 Enhance Your Calm - Twitter
+  class HTTPMisdirectedRequest < HTTPClientError            # 421 - RFC 7540
+    HAS_BODY = true
+  end
+  class HTTPUnprocessableEntity < HTTPClientError           # 422 - RFC 4918
+    HAS_BODY = true
+  end
+  class HTTPLocked < HTTPClientError                        # 423 - RFC 4918
+    HAS_BODY = true
+  end
+  class HTTPFailedDependency < HTTPClientError              # 424 - RFC 4918
+    HAS_BODY = true
+  end
+  # 425 Unordered Collection - existed only in draft
+  class HTTPUpgradeRequired < HTTPClientError               # 426 - RFC 2817
+    HAS_BODY = true
+  end
+  class HTTPPreconditionRequired < HTTPClientError          # 428 - RFC 6585
+    HAS_BODY = true
+  end
+  class HTTPTooManyRequests < HTTPClientError               # 429 - RFC 6585
+    HAS_BODY = true
+  end
+  class HTTPRequestHeaderFieldsTooLarge < HTTPClientError   # 431 - RFC 6585
+    HAS_BODY = true
+  end
+  class HTTPUnavailableForLegalReasons < HTTPClientError    # 451 - RFC 7725
+    HAS_BODY = true
+  end
+  # 444 No Response - Nginx
+  # 449 Retry With - Microsoft
+  # 450 Blocked by Windows Parental Controls - Microsoft
+  # 499 Client Closed Request - Nginx
+
+  class HTTPInternalServerError < HTTPServerError           # 500
+    HAS_BODY = true
+  end
+  class HTTPNotImplemented < HTTPServerError                # 501
+    HAS_BODY = true
+  end
+  class HTTPBadGateway < HTTPServerError                    # 502
+    HAS_BODY = true
+  end
+  class HTTPServiceUnavailable < HTTPServerError            # 503
+    HAS_BODY = true
+  end
+  class HTTPGatewayTimeout < HTTPServerError                # 504
+    HAS_BODY = true
+  end
+  HTTPGatewayTimeOut = HTTPGatewayTimeout
+  class HTTPVersionNotSupported < HTTPServerError           # 505
+    HAS_BODY = true
+  end
+  class HTTPVariantAlsoNegotiates < HTTPServerError         # 506
+    HAS_BODY = true
+  end
+  class HTTPInsufficientStorage < HTTPServerError           # 507 - RFC 4918
+    HAS_BODY = true
+  end
+  class HTTPLoopDetected < HTTPServerError                  # 508 - RFC 5842
+    HAS_BODY = true
+  end
+  # 509 Bandwidth Limit Exceeded - Apache bw/limited extension
+  class HTTPNotExtended < HTTPServerError                   # 510 - RFC 2774
+    HAS_BODY = true
+  end
+  class HTTPNetworkAuthenticationRequired < HTTPServerError # 511 - RFC 6585
+    HAS_BODY = true
+  end
+
+  # :startdoc:
 end
 
 class Net::HTTPResponse
@@ -303,5 +310,3 @@ class Net::HTTPResponse
     '511' => Net::HTTPNetworkAuthenticationRequired,
   }
 end
-
-# :startdoc:
diff --git a/test/net/http/test_http.rb b/test/net/http/test_http.rb
index b5156078a4..0508645ac5 100644
--- a/test/net/http/test_http.rb
+++ b/test/net/http/test_http.rb
@@ -178,13 +178,8 @@ class TestNetHTTP < Test::Unit::TestCase
       http = Net::HTTP.new 'hostname.example'
 
       assert_equal true, http.proxy?
-      if Net::HTTP::ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE
-        assert_equal 'foo', http.proxy_user
-        assert_equal 'bar', http.proxy_pass
-      else
-        assert_nil http.proxy_user
-        assert_nil http.proxy_pass
-      end
+      assert_equal 'foo', http.proxy_user
+      assert_equal 'bar', http.proxy_pass
     end
   end
 
@@ -195,13 +190,8 @@ class TestNetHTTP < Test::Unit::TestCase
       http = Net::HTTP.new 'hostname.example'
 
       assert_equal true, http.proxy?
-      if Net::HTTP::ENVIRONMENT_VARIABLE_IS_MULTIUSER_SAFE
-        assert_equal "Y\\X", http.proxy_user
-        assert_equal "R%S] ?X", http.proxy_pass
-      else
-        assert_nil http.proxy_user
-        assert_nil http.proxy_pass
-      end
+      assert_equal "Y\\X", http.proxy_user
+      assert_equal "R%S] ?X", http.proxy_pass
     end
   end
 
@@ -1294,3 +1284,87 @@ class TestNetHTTPLocalBind < Test::Unit::TestCase
   end
 end
 
+class TestNetHTTPForceEncoding < Test::Unit::TestCase
+  CONFIG = {
+    'host' => 'localhost',
+    'proxy_host' => nil,
+    'proxy_port' => nil,
+  }
+
+  include TestNetHTTPUtils
+
+  def fe_request(force_enc, content_type=nil)
+    @server.mount_proc('/fe') do |req, res|
+      res['Content-Type'] = content_type if content_type
+      res.body = "hello\u1234"
+    end
+
+    http = Net::HTTP.new(config('host'), config('port'))
+    http.local_host = Addrinfo.tcp(config('host'), config('port')).ip_address
+    assert_not_nil(http.local_host)
+    assert_nil(http.local_port)
+
+    http.response_body_encoding = force_enc
+    http.get('/fe')
+  end
+
+  def test_response_body_encoding_false
+    res = fe_request(false)
+    assert_equal("hello\u1234".b, res.body)
+    assert_equal(Encoding::ASCII_8BIT, res.body.encoding)
+  end
+
+  def test_response_body_encoding_true_without_content_type
+    res = fe_request(true)
+    assert_equal("hello\u1234".b, res.body)
+    assert_equal(Encoding::ASCII_8BIT, res.body.encoding)
+  end
+
+  def test_response_body_encoding_true_with_content_type
+    res = fe_request(true, 'text/html; charset=utf-8')
+    assert_equal("hello\u1234", res.body)
+    assert_equal(Encoding::UTF_8, res.body.encoding)
+  end
+
+  def test_response_body_encoding_string_without_content_type
+    res = fe_request('utf-8')
+    assert_equal("hello\u1234", res.body)
+    assert_equal(Encoding::UTF_8, res.body.encoding)
+  end
+
+  def test_response_body_encoding_encoding_without_content_type
+    res = fe_request(Encoding::UTF_8)
+    assert_equal("hello\u1234", res.body)
+    assert_equal(Encoding::UTF_8, res.body.encoding)
+  end
+end
+
+class TestNetHTTPPartialResponse < Test::Unit::TestCase
+  CONFIG = {
+    'host' => '127.0.0.1',
+    'proxy_host' => nil,
+    'proxy_port' => nil,
+  }
+
+  include TestNetHTTPUtils
+
+  def test_partial_response
+    str = "0123456789"
+    @server.mount_proc('/') do |req, res|
+      res.status = 200
+      res['Content-Type'] = 'text/plain'
+
+      res.body = str
+      res['Content-Length'] = str.length + 1
+    end
+    @server.mount_proc('/show_ip') { |req, res| res.body = req.remote_ip }
+
+    http = Net::HTTP.new(config('host'), config('port'))
+    res = http.get('/')
+    assert_equal(str, res.body)
+
+    http = Net::HTTP.new(config('host'), config('port'))
+    http.ignore_eof = false
+    assert_raise(EOFError) {http.get('/')}
+  end
+end
diff --git a/test/net/http/test_httpheader.rb b/test/net/http/test_httpheader.rb
index cfbe36bcfd..b1ca9e8225 100644
--- a/test/net/http/test_httpheader.rb
+++ b/test/net/http/test_httpheader.rb
@@ -308,6 +308,18 @@ class HTTPHeaderTest < Test::Unit::TestCase
   end
 
   def test_content_range
+    @c['Content-Range'] = "bytes 0-499/1000"
+    assert_equal 0..499, @c.content_range
+    @c['Content-Range'] = "bytes 1-500/1000"
+    assert_equal 1..500, @c.content_range
+    @c['Content-Range'] = "bytes 1-1/1000"
+    assert_equal 1..1, @c.content_range
+    @c['Content-Range'] = "tokens 1-1/1000"
+    assert_equal nil, @c.content_range
+
+    try_invalid_content_range "invalid"
+    try_invalid_content_range "bytes 123-abc"
+    try_invalid_content_range "bytes abc-123"
   end
 
   def test_range_length
@@ -317,6 +329,15 @@ class HTTPHeaderTest < Test::Unit::TestCase
     assert_equal 500, @c.range_length
     @c['Content-Range'] = "bytes 1-1/1000"
     assert_equal 1, @c.range_length
+    @c['Content-Range'] = "tokens 1-1/1000"
+    assert_equal nil, @c.range_length
+
+    try_invalid_content_range "bytes 1-1/abc"
+  end
+
+  def try_invalid_content_range(s)
+    @c['Content-Range'] = "#{s}"
+    assert_raise(Net::HTTPHeaderSyntaxError, s){ @c.content_range }
   end
 
   def test_chunked?
diff --git a/test/net/http/test_httpresponse.rb b/test/net/http/test_httpresponse.rb
index 1a78907284..394b4c5bfa 100644
--- a/test/net/http/test_httpresponse.rb
+++ b/test/net/http/test_httpresponse.rb
@@ -54,6 +54,241 @@ EOS
     assert_equal 'hello', body
   end
 
+  def test_read_body_body_encoding_false
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234".b, body
+    assert_equal Encoding::ASCII_8BIT, body.encoding
+  end
+
+  def test_read_body_body_encoding_encoding
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = Encoding.find('utf-8')
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234", body
+    assert_equal Encoding::UTF_8, body.encoding
+  end
+
+  def test_read_body_body_encoding_string
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = 'utf-8'
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234", body
+    assert_equal Encoding::UTF_8, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_without_content_type_header
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234".b, body
+    assert_equal Encoding::ASCII_8BIT, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_utf8_content_type_header
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+Content-Type: text/plain; charset=utf-8
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234", body
+    assert_equal Encoding::UTF_8, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_iso_8859_1_content_type_header
+    body = "hello\u1234"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{body.bytesize}
+Content-Type: text/plain; charset=iso-8859-1
+
+#{body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal "hello\u1234".force_encoding("ISO-8859-1"), body
+    assert_equal Encoding::ISO_8859_1, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_utf8_meta_charset
+    res_body = "<html><meta charset=\"utf-8\">hello\u1234</html>"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{res_body.bytesize}
+Content-Type: text/html
+
+#{res_body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal res_body, body
+    assert_equal Encoding::UTF_8, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_iso8859_1_meta_charset
+    res_body = "<html><meta charset=\"iso-8859-1\">hello\u1234</html>"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{res_body.bytesize}
+Content-Type: text/html
+
+#{res_body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal res_body.force_encoding("ISO-8859-1"), body
+    assert_equal Encoding::ISO_8859_1, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_utf8_meta_content_charset
+    res_body = "<meta http-equiv='content-type' content='text/html; charset=UTF-8'>hello\u1234</html>"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{res_body.bytesize}
+Content-Type: text/html
+
+#{res_body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal res_body, body
+    assert_equal Encoding::UTF_8, body.encoding
+  end
+
+  def test_read_body_body_encoding_true_with_iso8859_1_meta_content_charset
+    res_body = "<meta http-equiv='content-type' content='text/html; charset=ISO-8859-1'>hello\u1234</html>"
+    io = dummy_io(<<EOS)
+HTTP/1.1 200 OK
+Connection: close
+Content-Length: #{res_body.bytesize}
+Content-Type: text/html
+
+#{res_body}
+EOS
+
+    res = Net::HTTPResponse.read_new(io)
+    res.body_encoding = true
+
+    body = nil
+
+    res.reading_body io, true do
+      body = res.read_body
+    end
+
+    assert_equal res_body.force_encoding("ISO-8859-1"), body
+    assert_equal Encoding::ISO_8859_1, body.encoding
+  end
+
   def test_read_body_block
     io = dummy_io(<<EOS)
 HTTP/1.1 200 OK
@@ -78,7 +313,7 @@ EOS
 
   def test_read_body_block_mod
     # http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/3019353
-    if defined?(RubyVM::MJIT) ? RubyVM::MJIT.enabled? : defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
+    if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
       omit 'too unstable with --jit-wait, and extending read_timeout did not help it'
     end
     IO.pipe do |r, w|
@@ -127,9 +362,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '5', res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal '13', res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -155,9 +392,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '5', res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'DEFLATE', res['content-encoding']
+      assert_equal '13', res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -188,9 +427,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -215,6 +456,7 @@ EOS
     end
 
     assert_equal 'deflate', res['content-encoding'], 'Bug #7831'
+    assert_equal '13', res['content-length']
     assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body, 'Bug #7381'
   end
 
@@ -238,9 +480,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15\r\n", body
     end
   end
@@ -288,9 +532,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '0', res['content-length']
       assert_equal '', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal '0', res['content-length']
       assert_equal '', body
     end
   end
@@ -314,9 +560,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal '', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal '', body
     end
   end
diff --git a/test/net/http/test_https.rb b/test/net/http/test_https.rb
index 4dc9f1b026..72a69af1a5 100644
--- a/test/net/http/test_https.rb
+++ b/test/net/http/test_https.rb
@@ -137,7 +137,7 @@ class TestNetHTTPS < Test::Unit::TestCase
   def test_session_reuse
     # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
     # See https://github.com/openssl/openssl/pull/5967 for details.
-    skip if OpenSSL::OPENSSL_LIBRARY_VERSION =~ /OpenSSL 1.1.0h/
+    omit if OpenSSL::OPENSSL_LIBRARY_VERSION.include?('OpenSSL 1.1.0h')
 
     http = Net::HTTP.new(HOST, config("port"))
     http.use_ssl = true
@@ -152,19 +152,21 @@ class TestNetHTTPS < Test::Unit::TestCase
     end
 
     http.start
-    assert_equal false, http.instance_variable_get(:@socket).io.session_reused?
+    session_reused = http.instance_variable_get(:@socket).io.session_reused?
+    assert_false session_reused unless session_reused.nil? # can not detect re-use under JRuby
     http.get("/")
     http.finish
 
     http.start
-    assert_equal true, http.instance_variable_get(:@socket).io.session_reused?
+    session_reused = http.instance_variable_get(:@socket).io.session_reused?
+    assert_true session_reused unless session_reused.nil? # can not detect re-use under JRuby
     assert_equal $test_net_http_data, http.get("/").body
     http.finish
   end
 
   def test_session_reuse_but_expire
     # FIXME: The new_session_cb is known broken for clients in OpenSSL 1.1.0h.
-    skip if OpenSSL::OPENSSL_LIBRARY_VERSION =~ /OpenSSL 1.1.0h/
+    omit if OpenSSL::OPENSSL_LIBRARY_VERSION.include?('OpenSSL 1.1.0h')
 
     http = Net::HTTP.new(HOST, config("port"))
     http.use_ssl = true
@@ -301,7 +303,7 @@ class TestNetHTTPS < Test::Unit::TestCase
     ex = assert_raise(OpenSSL::SSL::SSLError){
       http.request_get("/") {|res| }
     }
-    re_msg = /\ASSL_connect returned=1 errno=0 |SSL_CTX_set_max_proto_version/
+    re_msg = /\ASSL_connect returned=1 errno=0 |SSL_CTX_set_max_proto_version|No appropriate protocol/
     assert_match(re_msg, ex.message)
   end
 
diff --git a/test/net/http/test_https_proxy.rb b/test/net/http/test_https_proxy.rb
index f833f1a1e3..4c2a92ccd6 100644
--- a/test/net/http/test_https_proxy.rb
+++ b/test/net/http/test_https_proxy.rb
@@ -10,7 +10,7 @@ class HTTPSProxyTest < Test::Unit::TestCase
     begin
       OpenSSL
     rescue LoadError
-      skip 'autoload problem. see [ruby-dev:45021][Bug #5786]'
+      omit 'autoload problem. see [ruby-dev:45021][Bug #5786]'
     end
 
     TCPServer.open("127.0.0.1", 0) {|serv|