Neither BindingResult nor plain target object for bean name available as request attribute [duplicate]

Question

I'm just learning the ropes of Spring 3's annotation fu and I've stumbled upon the newb's nightmare exception. Would appreciate any help.

here's the form jsp code:

  <form:form method="POST" action="login.htm" modelAttribute="login">   ....   <form:input path="email" size="20" />   .... 

the controller code (at this point I'm simply testing the waters, so not directing to any page, just returning an empty string):

@Controller @SessionAttributes public class LoginController {  @RequestMapping(value = "/login", method = RequestMethod.POST) public String login(    @ModelAttribute("login") Login login,                         BindingResult result) {      System.out.println(" email entered "+ login.getEmail()+ "\n");     return "test"; } 

"Login" is a form bean with the appropriate setter and getters.

i presume this bit of code in my dispatcher servlet should take care of the annotation scanning:

<context:component-scan     base-package="com.testAnnFu.controller" /> 

and this is the shameful exception getting thrown when i try to load my landing jsp page.

SEVERE: Neither BindingResult nor plain target object for bean name 'login' available as request attribute java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'login' available as request attribute     at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:174)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:194)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:160)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:147)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:138)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:122)     at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:408)     at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:140)     at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)     at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_input_0(landing_jsp.java from :208)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_form_0(landing_jsp.java from :164)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspService(landing_jsp.java from :107)     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:787)     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649)     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:483)     at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:454)     at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:350)     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:300)     at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)     at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)     at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)     at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)     at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)     at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)     at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)     at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)     at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)     at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)     at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)     at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)     at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)     at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)     at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)     at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)     at com.sun.grizzly.ContextTask.run(ContextTask.java:71)     at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)     at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)     at java.lang.Thread.run(Thread.java:680)  WARNING: ApplicationDispatcher[/sssmgt] PWC1231: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'login' available as request attribute     at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:174)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:194)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:160)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:147)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:138)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:122)     at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:408)     at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:140)     at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)     at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_input_0(landing_jsp.java from :208)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_form_0(landing_jsp.java from :164)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspService(landing_jsp.java from :107)     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:787)     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649)     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:483)     at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:454)     at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:350)     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:300)     at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)     at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)     at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)     at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)     at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)     at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)     at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)     at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)     at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)     at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)     at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)     at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)     at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)     at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)     at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)     at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)     at com.sun.grizzly.ContextTask.run(ContextTask.java:71)     at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)     at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)     at java.lang.Thread.run(Thread.java:680)  WARNING: StandardWrapperValve[dispatcher]: PWC1406: Servlet.service() for servlet dispatcher threw exception java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'login' available as request attribute     at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:174)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:194)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:160)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:147)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:138)     at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:122)     at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:408)     at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:140)     at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)     at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_input_0(landing_jsp.java from :208)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspx_meth_form_form_0(landing_jsp.java from :164)     at org.apache.jsp.WEB_002dINF.jsp.landing_jsp._jspService(landing_jsp.java from :107)     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:787)     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649)     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:483)     at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:454)     at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:350)     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:300)     at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)     at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)     at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)     at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)     at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)     at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)     at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)     at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)     at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)     at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)     at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)     at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)     at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)     at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)     at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)     at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)     at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)     at com.sun.grizzly.ContextTask.run(ContextTask.java:71)     at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)     at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)     at java.lang.Thread.run(Thread.java:680) 

I knocked off the form:input part and had a bare jsp page, that seems to load. only when i introduce the inputs are things going wrong.

i know there is something terribly wrong with my understanding of how this whole annotation thing gets wired up and maps to the ModelAttribute. I've rummaged through all combinations and posts in StOv for similar exceptions, but I've clearly missed something. could someone be so kind as to point out my blunder here?

Answer 1

In the controller, you need to add the login object as an attribute of the model:

model.addAttribute("login", new Login()); 

Like this:

@RequestMapping(value = "/", method = RequestMethod.GET)  public String displayLogin(Model model) {      model.addAttribute("login", new Login());      return "login";  }