spike: Experimenting with privacy.

Author: jdantonio

ext/com/concurrent_ruby/ext/SynchronizationLibrary.java

@@ -55,7 +55,7 @@ public IRubyObject initialize(ThreadContext context, IRubyObject[] args, Block b
             }
         }
 
-        @JRubyMethod(name = "synchronize", visibility = Visibility.PROTECTED)
+        @JRubyMethod(name = "synchronize", visibility = Visibility.PRIVATE)
         public IRubyObject rubySynchronize(ThreadContext context, Block block) {
             synchronized (this) {
                 return block.yield(context, null);

lib/concurrent/delay.rb

@@ -72,6 +72,8 @@ def initialize(opts = {}, &block)
       super(opts, &block)
     end
 
+    protected :synchronize
+
     # Return the value this object represents after applying the options
     # specified by the `#set_deref_options` method. If the delayed operation
     # raised an exception this method will return nil. The execption object