lazier Java version warnings ... only if you happen to use the compressor. Issue #126

Author: jashkenas

lib/jammit.rb

@@ -86,7 +86,6 @@ def self.load_configuration(config_path, soft=false)
     set_template_extension(conf[:template_extension])
     symbolize_keys(conf[:stylesheets]) if conf[:stylesheets]
     symbolize_keys(conf[:javascripts]) if conf[:javascripts]
-    check_java_version
     check_for_deprecations
     self
   end
@@ -184,7 +183,9 @@ def self.disable_compression
 
   # Jammit 0.5+ no longer supports separate template packages.
   def self.check_for_deprecations
-    raise DeprecationError, "Jammit 0.5+ no longer supports separate packages for templates.\nPlease fold your templates into the appropriate 'javascripts' package instead." if @configuration[:templates]
+    if @configuration[:templates]
+      raise DeprecationError, "Jammit 0.5+ no longer supports separate packages for templates.\nPlease fold your templates into the appropriate 'javascripts' package instead."
+    end
   end
 
   def self.warn(message)

lib/jammit/compressor.rb

@@ -52,10 +52,11 @@ class Compressor
       :closure  => {},
       :uglifier => {:copyright => false}
     }
-    
-    # The css comressor if always YUI Compressor. Js compression can be provided with
-    # YUI Compressor, Google Closure Compiler or UglifyJS
+
+    # The css compressor is always the YUI Compressor. JS compression can be
+    # provided with YUI Compressor, Google Closure Compiler or UglifyJS.
     def initialize
+      Jammit.check_java_version
       @css_compressor = YUI::CssCompressor.new(Jammit.css_compressor_options || {})
       flavor          = Jammit.javascript_compressor || Jammit::DEFAULT_COMPRESSOR
       @options        = DEFAULT_OPTIONS[flavor].merge(Jammit.compressor_options || {})