fix for jruby 1.8 mode

execjs.gemspec

@@ -23,7 +23,7 @@ Gem::Specification.new do |s|
     s.add_development_dependency "mustang"
     s.add_development_dependency "therubyracer"
   else
-    s.add_development_dependency "therubyrhino"
+    s.add_development_dependency "therubyrhino", ">=1.73.3"
   end
 
   s.authors = ["Sam Stephenson", "Josh Peek"]

lib/execjs/ruby_rhino_runtime.rb

@@ -23,7 +23,7 @@ def eval(source, options = {})
         if /\S/ =~ source
           unbox @rhino_context.eval("(#{source})")
         end
-      rescue ::Rhino::JavascriptError => e
+      rescue ::Rhino::JSError => e
         if e.message == "syntax error"
           raise RuntimeError, e.message
         else
@@ -33,7 +33,7 @@ def eval(source, options = {})
 
       def call(properties, *args)
         unbox @rhino_context.eval(properties).call(*args)
-      rescue ::Rhino::JavascriptError => e
+      rescue ::Rhino::JSError => e
         if e.message == "syntax error"
           raise RuntimeError, e.message
         else
@@ -42,13 +42,13 @@ def call(properties, *args)
       end
 
       def unbox(value)
-        case value = ::Rhino::To.ruby(value)
-        when ::Rhino::NativeFunction
+        case value = ::Rhino::to_ruby(value)
+        when Java::OrgMozillaJavascript::NativeFunction
           nil
-        when ::Rhino::NativeObject
+        when Java::OrgMozillaJavascript::NativeObject
           value.inject({}) do |vs, (k, v)|
             case v
-            when ::Rhino::NativeFunction, ::Rhino::J::Function
+            when Java::OrgMozillaJavascript::NativeFunction, ::Rhino::JS::Function
               nil
             else
               vs[k] = unbox(v)