Do not proxy volatile methods

git-svn-id: http://anonsvn.jboss.org/repos/javassist/trunk@288 30ef5769-5b8d-40dd-aea6-55b5d6557bb3

src/main/javassist/util/proxy/ProxyFactory.java

@@ -417,6 +417,8 @@ public class ProxyFactory {
      * @param mod       the modifiers of the method. 
      */
     private static boolean isVisible(int mod, String from, Member meth) {
+        if ((mod & Modifier.VOLATILE) != 0)
+         return false;
         if ((mod & Modifier.PRIVATE) != 0)
             return false;
         else if ((mod & (Modifier.PUBLIC | Modifier.PROTECTED)) != 0)