anonymous wrote : java.lang.NullPointerException | at java.lang.reflect.Array.newArray(Native Method) | at java.lang.reflect.Array.newInstance(Unknown Source) | at org.apache.struts.config.FormPropertyConfig.getTypeClass(FormPropertyConfig.java:270) | at org.apache.struts.action.DynaActionFormClass.introspect(DynaActionFormClass.java:389) Looks like something wrong with your struts config file View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4044403#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...