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home > news > java technology > totd #87: how to fix the error undefined method `new' for "rack::lock":string caused by warbler/jruby-rack ?

TOTD #87: How to fix the error undefined method `new' for "Rack::Lock":String caused by Warbler/JRuby-Rack ?

If you are using Warbler to create a WAR file of your application and deploying on GlassFish or any other Servlet container, then you are likely seeing the following error during deployment: [#|2009-07-30T15:29:50.788-0700|SEVERE|sun-appserver2.1|javax.enterprise.system. container.web|_ThreadID=17; _ThreadName=httpWorkerThread-4848-0;_RequestID=1d7e8f18-1c9a-4924-bd0b-6a07eba42 5ba;|WebModule [/session]unable to create shared application instance org.jruby.rack.RackInitializationException: undefined method `new' for "Rack::Lock":String         from /Users/arungupta/tools/glassfish/v2.1/glassfish/domains/domain1/applications/j2e e-modules/session/WEB-INF/gems/gems/actionpack-2.3.2/lib/ action_controller/middleware_stack.rb:116:in `inject'         from /Users/arungupta/tools/glassfish/v2.1/glassfish/domains/domain1/applications/j2e e-modules/session/WEB-INF/gems/gems/actionpack-2.3.2/lib/ action_controller/middleware_stack.rb:116:in...


Date: July, 31 2009
Url: http://weblogs.java.net/blog/arungupta/archive/2009/07/totd_87_how_to.html


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