i have class called menu, field called vocemenulist, contains menu items "home", "contact" etc.
public class menu implements serializable{ private set<vocemenu> vocemenulist; public void setvocemenulist(set<vocemenu> vocemenulist) { this.vocemenulist = vocemenulist;} public set<vocemenu> getvocemenulist() { return vocemenulist;} } this jsp page, print in input-text fields of object vocemenu, in order edit value
<c:foreach items="${menu.vocemenulist}" varstatus="counter"> ... url <form:input path="vocemenulist[${counter.index}].url" maxlength="11"/><br/> ... </c:foreach> when post page following error, because jsp page returns list, class expect set. how can solve problem?
thank
org.springframework.web.util.nestedservletexception: request processing failed; nested exception org.springframework.beans.invalidpropertyexception: invalid property 'vocemenulist[0]' of bean class [com.springgestioneerrori.model.menu]: getter property 'vocemenulist' threw exception; nested exception java.lang.reflect.invocationtargetexception org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:894) org.springframework.web.servlet.frameworkservlet.dopost(frameworkservlet.java:789) javax.servlet.http.httpservlet.service(httpservlet.java:754) javax.servlet.http.httpservlet.service(httpservlet.java:847) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:54) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:183) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:105) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.concurrentsessionfilter.dofilter(concurrentsessionfilter.java:125) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:346) org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:259) root cause org.springframework.beans.invalidpropertyexception: invalid property 'vocemenulist[0]' of bean class [com.springgestioneerrori.model.menu]: getter property 'vocemenulist' threw exception; nested exception java.lang.reflect.invocationtargetexception org.springframework.beans.beanwrapperimpl.getpropertyvalue(beanwrapperimpl.java:845) org.springframework.beans.beanwrapperimpl.getnestedbeanwrapper(beanwrapperimpl.java:576) org.springframework.beans.beanwrapperimpl.getbeanwrapperforpropertypath(beanwrapperimpl.java:553) org.springframework.beans.beanwrapperimpl.setpropertyvalue(beanwrapperimpl.java:914) org.springframework.beans.abstractpropertyaccessor.setpropertyvalues(abstractpropertyaccessor.java:76) org.springframework.validation.databinder.applypropertyvalues(databinder.java:692) org.springframework.validation.databinder.dobind(databinder.java:588) org.springframework.web.bind.webdatabinder.dobind(webdatabinder.java:191) org.springframework.web.bind.servletrequestdatabinder.bind(servletrequestdatabinder.java:112) org.springframework.web.servlet.mvc.method.annotation.servletmodelattributemethodprocessor.bindrequestparameters(servletmodelattributemethodprocessor.java:153) org.springframework.web.method.annotation.modelattributemethodprocessor.resolveargument(modelattributemethodprocessor.java:106) org.springframework.web.method.support.handlermethodargumentresolvercomposite.resolveargument(handlermethodargumentresolvercomposite.java:75) org.springframework.web.method.support.invocablehandlermethod.getmethodargumentvalues(invocablehandlermethod.java:162) org.springframework.web.method.support.invocablehandlermethod.invokeforrequest(invocablehandlermethod.java:123) org.springframework.web.servlet.mvc.method.annotation.servletinvocablehandlermethod.invokeandhandle(servletinvocablehandlermethod.java:100) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.invokehandlermethod(requestmappinghandleradapter.java:604) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:565) org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:80) org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:923) org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:852) org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:882) org.springframework.web.servlet.frameworkservlet.dopost(frameworkservlet.java:789) javax.servlet.http.httpservlet.service(httpservlet.java:754) javax.servlet.http.httpservlet.service(httpservlet.java:847) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:54) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:183) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:105) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.concurrentsessionfilter.dofilter(concurrentsessionfilter.java:125) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:346) org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:259) root cause java.lang.reflect.invocationtargetexception sun.reflect.generatedmethodaccessor35.invoke(unknown source) sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source) java.lang.reflect.method.invoke(unknown source) org.springframework.beans.beanwrapperimpl.getpropertyvalue(beanwrapperimpl.java:761) org.springframework.beans.beanwrapperimpl.getnestedbeanwrapper(beanwrapperimpl.java:576) org.springframework.beans.beanwrapperimpl.getbeanwrapperforpropertypath(beanwrapperimpl.java:553) org.springframework.beans.beanwrapperimpl.setpropertyvalue(beanwrapperimpl.java:914) org.springframework.beans.abstractpropertyaccessor.setpropertyvalues(abstractpropertyaccessor.java:76) org.springframework.validation.databinder.applypropertyvalues(databinder.java:692) org.springframework.validation.databinder.dobind(databinder.java:588) org.springframework.web.bind.webdatabinder.dobind(webdatabinder.java:191) org.springframework.web.bind.servletrequestdatabinder.bind(servletrequestdatabinder.java:112) org.springframework.web.servlet.mvc.method.annotation.servletmodelattributemethodprocessor.bindrequestparameters(servletmodelattributemethodprocessor.java:153) org.springframework.web.method.annotation.modelattributemethodprocessor.resolveargument(modelattributemethodprocessor.java:106) org.springframework.web.method.support.handlermethodargumentresolvercomposite.resolveargument(handlermethodargumentresolvercomposite.java:75) org.springframework.web.method.support.invocablehandlermethod.getmethodargumentvalues(invocablehandlermethod.java:162) org.springframework.web.method.support.invocablehandlermethod.invokeforrequest(invocablehandlermethod.java:123) org.springframework.web.servlet.mvc.method.annotation.servletinvocablehandlermethod.invokeandhandle(servletinvocablehandlermethod.java:100) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.invokehandlermethod(requestmappinghandleradapter.java:604) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:565) org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:80) org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:923) org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:852) org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:882) org.springframework.web.servlet.frameworkservlet.dopost(frameworkservlet.java:789) javax.servlet.http.httpservlet.service(httpservlet.java:754) javax.servlet.http.httpservlet.service(httpservlet.java:847) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:54) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:183) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:105) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.concurrentsessionfilter.dofilter(concurrentsessionfilter.java:125) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:346) org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:259) root cause java.lang.nullpointerexception com.springgestioneerrori.model.menu.getvocemenulist(menu.java:85) sun.reflect.generatedmethodaccessor35.invoke(unknown source) sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source) java.lang.reflect.method.invoke(unknown source) org.springframework.beans.beanwrapperimpl.getpropertyvalue(beanwrapperimpl.java:761) org.springframework.beans.beanwrapperimpl.getnestedbeanwrapper(beanwrapperimpl.java:576) org.springframework.beans.beanwrapperimpl.getbeanwrapperforpropertypath(beanwrapperimpl.java:553) org.springframework.beans.beanwrapperimpl.setpropertyvalue(beanwrapperimpl.java:914) org.springframework.beans.abstractpropertyaccessor.setpropertyvalues(abstractpropertyaccessor.java:76) org.springframework.validation.databinder.applypropertyvalues(databinder.java:692) org.springframework.validation.databinder.dobind(databinder.java:588) org.springframework.web.bind.webdatabinder.dobind(webdatabinder.java:191) org.springframework.web.bind.servletrequestdatabinder.bind(servletrequestdatabinder.java:112) org.springframework.web.servlet.mvc.method.annotation.servletmodelattributemethodprocessor.bindrequestparameters(servletmodelattributemethodprocessor.java:153) org.springframework.web.method.annotation.modelattributemethodprocessor.resolveargument(modelattributemethodprocessor.java:106) org.springframework.web.method.support.handlermethodargumentresolvercomposite.resolveargument(handlermethodargumentresolvercomposite.java:75) org.springframework.web.method.support.invocablehandlermethod.getmethodargumentvalues(invocablehandlermethod.java:162) org.springframework.web.method.support.invocablehandlermethod.invokeforrequest(invocablehandlermethod.java:123) org.springframework.web.servlet.mvc.method.annotation.servletinvocablehandlermethod.invokeandhandle(servletinvocablehandlermethod.java:100) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.invokehandlermethod(requestmappinghandleradapter.java:604) org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:565) org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:80) org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:923) org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:852) org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:882) org.springframework.web.servlet.frameworkservlet.dopost(frameworkservlet.java:789) javax.servlet.http.httpservlet.service(httpservlet.java:754) javax.servlet.http.httpservlet.service(httpservlet.java:847) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:54) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:183) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:105) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.concurrentsessionfilter.dofilter(concurrentsessionfilter.java:125) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:346) org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:259) note full stack trace of root cause available in apache tomcat/7.0.42 logs. apache tomcat/7.0.42
you should able iterate without using counter variable doing:
<c:foreach items="${menu.vocemenulist}" var="item"> ... url <form:input path="${item.url}" maxlength="11"/><br/> ... </c:foreach> note use of var instead of varstatus. way doesn't matter it's set, long it's iterable
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