Question

org.apache.jasper.JasperException: Invalid property

Asked by: design_web

I get this error when I try to access my index.jsp page.  I'm using jstl, spring, hibernate and I'm a beginner - so please explain if you ask me a question.

I know it will be hard to figure this out with out looking at all the code but if you have any ideas it would be greatly appreciated.  If you need to see more of the code just ask and I'll post it.  Thanks.

Here's the stacktrace

2007-07-09 07:45:07,321 ERROR [org.springframework.web.servlet.tags.BindTag] - <Invalid property 'subNumber' of bean class [com.account.bean.impl.People]: Getter for property 'subNumber' threw exception; nested exception is java.lang.reflect.InvocationTargetException: null>
org.springframework.beans.InvalidPropertyException: Invalid property 'subNumber' of bean class [com.account.bean.impl.People]: Getter for property 'subNumber' threw exception; nested exception is java.lang.reflect.InvocationTargetException: null
java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:657)
      at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:643)
      at org.springframework.validation.BindException.getFieldValue(BindException.java:335)
      at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:117)
      at org.springframework.web.servlet.tags.BindTag.doStartTagInternal(BindTag.java:115)
      at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:68)
      at org.apache.jsp.WEB_002dINF.jsp.index_jsp._jspService(index_jsp.java:191)
      at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
      at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
      at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704)
      at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474)
      at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409)
      at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
      at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:97)
      at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
      at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:928)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:705)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:392)
      at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:347)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
      at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
      at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
      at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
      at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
      at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
      at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
      at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
      at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
      at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
      at java.lang.Thread.run(Thread.java:534)

------------------------------------------------------------------------------------------------------------
Getter and Setter

public String getSubNumber() {
   return subNumber;
   }
            
public void setSubNumber(String subNumber) {
  this.subNumber = subNumber;
}

-------------------------------------------------------------------------------------------------------------------
HTML JSTL etc

<form action="index.jsp" method="post">

<table cellpadding="0" cellspacing="0">
    <tr><td> <spring:hasBindErrors name="People">                    
              <c:forEach var="err" items="${errors.globalErrors}">
              <c:out value="${err.defaultMessage}"/>
              </c:forEach>
            </spring:hasBindErrors>
   </td>
</tr>
 </table>
 
<table cellpadding="0" cellspacing="0">
     <tr>
         <td>Sub Number</td>
    </tr>
       <tr>
         <td><spring:bind path="People.subNumber">
              <input name="subNumber" value="<c:out value="${status.value}"/>">
              <c:out value="${status.errorMessage}"/>
            </spring:bind>
          </td>
            </tr>
            <tr>
             <td><input name="submit" type="submit" value="Search" /></td>
           </tr>
   </table>



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Asked On
2007-07-09 at 06:27:07ID22683149
Tags

property

,

invalid

Topics

Java Standard Tag Library (JSTL) & Server Tags

,

J2EE Frameworks

,

J2EE

Participating Experts
1
Points
500
Comments
6

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Answers

 

by: bpmurrayPosted on 2007-07-10 at 12:37:35ID: 19457023

Try changing it like this:

      public String getSubNumber() {
         return subNumber ? subNumber : new String("");
         }

 

by: design_webPosted on 2007-07-10 at 13:36:01ID: 19457495

What is the (?) for?  Did you mean to put something else?  

 

by: bpmurrayPosted on 2007-07-11 at 01:27:52ID: 19460589

No - it's shorthand for if. You can rephrase it as:

if (null != subNumber)
   return subNumber;
else
   return new String("");

 

by: design_webPosted on 2007-07-11 at 04:40:41ID: 19461517

Thanks for the info. but it didn't work.  I"m getting the same error.

ERROR [org.springframework.web.servlet.tags.BindTag] - <Invalid property 'subNumber' of bean class [com.account.bean.impl.People]: Getter for property 'subNumber' threw exception; nested exception is java.lang.reflect.InvocationTargetException: null>

 

by: bpmurrayPosted on 2007-07-11 at 12:23:26ID: 19465817

Well, what's happening is that you're getting an exception on your <spring:bind> because the getSubNumber  method is throwing an exception. I guess you should really catch that exception to see what it is - perhaps something like:

public String getSubNumber() {
   try {
      return subNumber;
   } catch (Exception e) {
        System.out.println("****** EXCEPTION: " + e.toString);
    }
}

One other thing that may be at issue here is the description of the bean - does that match the signatures of the methods?

 

by: design_webPosted on 2007-07-11 at 18:13:23ID: 19468038

Ok that gives me something I can work with, it told me that SubNumber isn't the problem. Even though, the stracktrace said it was the problem.  It's another form element called attendDate.  By the way, I'm creating this app to learn something.  I'm not a big time Java guy in case you haven't noticed.  Thank You for your help.  Almost everything helps when working with Java, shew what a mess.

20120131-EE-VQP-002

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