Remove old Rack 1.x / Rails < 3 compatibility code

We are only supporting Rack 2.x onwards now anyway.

src/main/java/org/jruby/rack/servlet/ResponseCapture.java

@@ -231,7 +231,7 @@ public boolean isHandled(final HttpServletRequest request) {
 
             // consider HTTP OPTIONS with "Allow" header unhandled :
             if ( request != null && "OPTIONS".equals( request.getMethod() ) ) {
-                final Collection<String> headerNames = getHeaderNamesOrNull();
+                final Collection<String> headerNames = getHeaderNames();
                 if ( headerNames == null || headerNames.isEmpty() ) {
                     // not to happen but there's all kind of beasts out there
                     return false;
@@ -277,17 +277,4 @@ public void setHandledByDefault(boolean handledByDefault) {
     public boolean isOutputAccessed() {
         return output != null;
     }
-
-    @SuppressWarnings("unchecked")
-    private Collection<String> getHeaderNamesOrNull() {
-        // NOTE: getHeaderNames since Servlet API 3.0 JRuby-Rack 1.1 still supports 2.5
-        try {
-            final Method getHeaderNames = getResponse().getClass().getMethod("getHeaderNames");
-            return (Collection<String>) getHeaderNames.invoke( getResponse() );
-        }
-        catch (NoSuchMethodException e) { return null; }
-        catch (IllegalAccessException e) { return null; }
-        catch (InvocationTargetException e) { return null; }
-    }
-
 }

src/main/ruby/jruby/rack/chunked.rb

@@ -20,16 +20,4 @@ def each(&block)
     @body.each(&block) # no-chunking on servlets
   end
 
-end if defined? Rack::Chunked::Body
-
-unless defined? Rack::Chunked::Body # Rack 1.1
-
-  Rack::Chunked.class_eval do
-
-    def each(&block)
-      @body.each(&block) # no-chunking on servlets
-    end
-
-  end
-
 end

src/main/ruby/jruby/rack/session_store.rb

@@ -71,7 +71,9 @@ def get_servlet_session(env, create = false)
 
       private # Rack::Session::Abstract::ID overrides :
 
-        def session_class; ::JRuby::Rack::Session::SessionHash; end # Rack 1.5
+        def session_class
+          ::JRuby::Rack::Session::SessionHash
+        end
 
         def initialize_sid
           nil # dummy method - not usable with servlet API

src/spec/ruby/jruby/rack/integration_spec.rb

@@ -407,15 +407,7 @@ def expect_to_have_monkey_patched_chunked
     script = %{
       headers = { 'Transfer-Encoding' => 'chunked' }
 
-      body = [ \"1\".freeze, \"\", \"\nsecond\" ]
-
-      if defined? Rack::Chunked::Body # Rails 3.x
-        body = Rack::Chunked::Body.new body
-      else # Rack 1.1 / 1.2
-        chunked = Rack::Chunked.new(nil)
-        chunked.chunk(200, headers, body)
-        body = chunked
-      end
+      body = Rack::Chunked::Body.new [ \"1\".freeze, \"\", \"\nsecond\" ]
 
       parts = []; body.each { |part| parts << part }
       parts.join
@@ -431,10 +423,7 @@ def initialize_rails(env = nil, servlet_context = @servlet_context)
       servlet_context = new_servlet_context(base)
     end
     listener = org.jruby.rack.rails.RailsServletContextListener.new
-    # Travis-CI might have RAILS_ENV=test set, which is not desired for us :
-    #if ENV['RAILS_ENV'] || ENV['RACK_ENV']
-    #ENV['RAILS_ENV'] = env; ENV.delete('RACK_ENV')
-    #end
+
     the_env = "GEM_HOME=#{ENV['GEM_HOME']},GEM_PATH=#{ENV['GEM_PATH']}"
     the_env << "\nRAILS_ENV=#{env}" if env
     servlet_context.addInitParameter("jruby.runtime.env", the_env)

src/spec/ruby/jruby/rack/response_spec.rb

@@ -170,14 +170,8 @@ class << value; undef_method :each; end if value.respond_to?(:each)
       ]
 
       with_dechunk do
-        if defined? Rack::Chunked::Body # Rails 3.x
-          body = Rack::Chunked::Body.new body
-          response = JRuby::Rack::Response.new([ 200, headers, body ])
-        else # Rails 2.3 -> Rack 1.1
-          chunked = Rack::Chunked.new nil # nil application
-          response = JRuby::Rack::Response.new chunked.chunk(200, headers, body)
-        end
-
+        body = Rack::Chunked::Body.new body
+        response = JRuby::Rack::Response.new([ 200, headers, body ])
         response.write_headers(response_environment)
 
         times = 0

src/spec/ruby/rack/handler/servlet_spec.rb

@@ -642,11 +642,7 @@ def getAttributeNames
       request.logger.should be nil # we do not setup rack.logger
 
       lambda { request.scheme }.should_not raise_error
-      if Rack.release >= '1.3' # rack 1.3.x 1.4.x
-        request.scheme.should == 'https' # X-Forwarded-Proto
-      else
-        request.scheme.should == 'http' # Rails 3.0 / 2.3
-      end
+      request.scheme.should == 'https' # X-Forwarded-Proto
 
       lambda { request.port }.should_not raise_error
       request.port.should == 80
@@ -662,19 +658,11 @@ def getAttributeNames
 
       if defined?(request.base_url)
         lambda { request.base_url }.should_not raise_error
-        if Rack.release >= '1.3' # Rails >= 3.1.x
-          request.base_url.should == 'https://serverhost:80'
-        else
-          request.base_url.should == 'http://serverhost'
-        end
+        request.base_url.should == 'https://serverhost:80'
       end
 
       lambda { request.url }.should_not raise_error
-      if Rack.release >= '1.3' # Rails >= 3.1.x
-        request.url.should == 'https://serverhost:80/main/app1/path/info?hello=there'
-      else
-        request.url.should == 'http://serverhost/main/app1/path/info?hello=there'
-      end
+      request.url.should == 'https://serverhost:80/main/app1/path/info?hello=there'
     end
 
     describe 'dumped-and-loaded' do