有没有办法让Jruby运行时实习生所有字符串？

We have a java/jruby webapp running under tomcat, and I have been analyzing the number of objects and memory use by the app during runtime. I have noticed after startup the class "org.jruby.RubyString" had 1,118,000 instances of the string "", the total amount of heap memory used by empty strings alone is 65mb, this to me is ridiculous because it is 15% of the memory used by the webapp. The empty string is only one example of many string values with this problem, if I can intern all the jruby strings I worked out I could save about 130mb.We have a java/jruby webapp running under tomca