disable some tests in jruby.

features/command_line.feature

@@ -69,6 +69,7 @@ Feature: Command Line
     And the command exits with a non-zero error code
 
   Scenario: Initializing a rails project
+    Given ruby supports fork
     Given I'm in a newly created rails project: my_rails_project
     When I initialize a project using: compass init rails --sass-dir app/stylesheets --css-dir public/stylesheets/compiled
     Then a config file config/compass.rb is reported created
@@ -179,6 +180,7 @@ Feature: Command Line
     And a css file tmp/layout.css is reported overwritten
 
   Scenario: Watching a project for changes
+    Given ruby supports fork
     Given I am using the existing project in test/fixtures/stylesheets/compass
     When I run: compass compile
     And I run in a separate process: compass watch 

features/extensions.feature

@@ -14,7 +14,8 @@ Feature: Extensions
 
   @listframeworks
   Scenario: Extensions directory for rails projects
-    Given I'm in a newly created rails project: my_rails_project
+    Given ruby supports fork
+    And I'm in a newly created rails project: my_rails_project
     And the "my_rails_project/vendor/plugins/compass/extensions" directory exists
     And and I have a fake extension at my_rails_project/vendor/plugins/compass/extensions/testing
     When I run: compass frameworks

features/step_definitions/command_line_steps.rb

@@ -21,6 +21,12 @@ After do
   end
 end
 
+Given "ruby supports fork" do
+  if RUBY_PLATFORM == "java"
+    pending
+  end
+end
+
 # Given Preconditions
 Given %r{^I am using the existing project in ([^\s]+)$} do |project|
   tmp_project = "tmp_#{File.basename(project)}"