nested exception is java.lang.IllegalStateException: Cannot create command without commandClass

I am getting following exception while using AbstractCommandController in spring framework.

The server encountered an internal error () that prevented it from fulfilling this request.
exception org.springframework.web.util.NestedServletException: Request processing
failed; nested exception is java.lang.IllegalStateException: Cannot create command without commandClass
being set - either set commandClass or (in a form controller) override formBackingObject
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:488)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:441)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:265)
org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)

Please help me in resolving this exception. Thanks in advance.

July 22, 2008 | Filed Under J2ee, Java, Spring 

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Comments

One Response to “nested exception is java.lang.IllegalStateException: Cannot create command without commandClass”

  1. Abhishek on September 10th, 2008 11:36 pm

    It seems that you are not setting command class. If you are using AbstractCommandController then you need to set command class for that controller. An instance of this command class gets populated and validated on each request.
    if you are not sure which command class to use or you don’t have any data in the request which needs to be populated then you can use Object as command bean.

    public LoginController() {
    setCommandClass(Object.class);
    }

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