Hello, I am trying to deply my application ear in the Jboss 4.0.3Sp1 application server and while deploying in the logger i am getting error like... 15:07:49,548 INFO [[/Collections]] Marking servlet CollectionsCommonGatewayServlet as unavailable 15:07:49,548 ERROR [[/Collections]] Servlet /Collections threw load() exception java.lang.NoClassDefFoundError: java/io/OutputStreamWriter at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328) I've neglected the complete logger and CollectionsCommonGatewayServlet is my main servlet name. Can Any body help me on this... Regards, Vishesh Ved View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091432#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...