I get this error (above) only when i use a multiaction controller when send a submit ..Is it a bug??
The checkBoxs listaTipologieIds appears and the property checked is valid...Is it a form when data is loaded by one bean (injection) and the user can modify data in it..

please help me! i have to finish a work! thanks
Roby

org.springframework.beans.InvalidPropertyException : Invalid property 'listaTipologieIds[0]' of bean class [it.xxx.cms.primarioinformativadispositiva.bean.Pid BeanView]: Index of out of bounds in property path 'listaTipologieIds[0]'; nested exception is java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
org.springframework.beans.BeanWrapperImpl.getPrope rtyValue(BeanWrapperImpl.java:617)
org.springframework.beans.BeanWrapperImpl.getNeste dBeanWrapper(BeanWrapperImpl.java:451)
org.springframework.beans.BeanWrapperImpl.getBeanW rapperForPropertyPath(BeanWrapperImpl.java:428)
org.springframework.beans.BeanWrapperImpl.setPrope rtyValue(BeanWrapperImpl.java:645)
org.springframework.beans.AbstractPropertyAccessor .setPropertyValues(AbstractPropertyAccessor.java:7 8)
org.springframework.validation.DataBinder.applyPro pertyValues(DataBinder.java:532)
org.springframework.validation.DataBinder.doBind(D ataBinder.java:434)
org.springframework.web.bind.WebDataBinder.doBind( WebDataBinder.java:147)
org.springframework.web.bind.ServletRequestDataBin der.bind(ServletRequestDataBinder.java:108)
org.springframework.web.servlet.mvc.multiaction.Mu ltiActionController.bind(MultiActionController.jav a:532)
org.springframework.web.servlet.mvc.multiaction.Mu ltiActionController.invokeNamedMethod(MultiActionC ontroller.java:469)
org.springframework.web.servlet.mvc.multiaction.Mu ltiActionController.handleRequestInternal(MultiAct ionController.java:409)
org.springframework.web.servlet.mvc.AbstractContro ller.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48)
org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:874)
org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:808)
org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:476)
org.springframework.web.servlet.FrameworkServlet.d oPost(FrameworkServlet.java:441)
javax.servlet.http.HttpServlet.service(HttpServlet .java:710)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
it.posteitaliane.cms.authentication.ServletAuthent icationFilter.doFilter(ServletAuthenticationFilter .java:71)
it.posteitaliane.cms.authentication.Authentication Filter.doFilter(AuthenticationFilter.java:33)