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Expected receiver of type, but got
java.lang.IllegalArgumentException: argument type mismatch	at java.lang.reflect.Method.invoke(Native Method)	at org.apache.struts.util.PropertyUtils.setSimpleProperty(	at org.apache.struts.util.PropertyUtils.setNestedProperty(	at org.apache.struts.util.PropertyUtils.setProperty(	at org.apache.struts.util.BeanUtils.populate(	at org.apache.struts.util.RequestUtils.populate(	at org.apache.struts.action.ActionServlet.processPopulate(	at org.apache.struts.action.ActionServlet.process(	at org.apache.struts.action.ActionServlet.doPost(	at javax.servlet.http.HttpServlet.service(	at javax.servlet.http.HttpServlet.service(	at org.apache.tomcat.facade.ServletHandler.doService(	at org.apache.tomcat.core.Handler.invoke(	at org.apache.tomcat.core.Handler.service(	at org.apache.tomcat.facade.ServletHandler.service(	at org.apache.tomcat.core.ContextManager.internalService(	at org.apache.tomcat.core.ContextManager.service(	at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(	at	at org.apache.tomcat.util.threads.ThreadPool$	at