java.lang.NullPointerException in File name Struts

Hi there, I have a problem and I need help.
I´m working with Struts 1.3.10 in NetBeans 7.1.2, I'm developing a web app, I'm using jsp, well, I'm implementing a jsp where I upload a file, but is giving me problems. I have the next code and configurations.

In the JSP I have:

In the Form bean I have

In the Action I have

package Controladores;

import java.io.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.*;

/**
 *
 * @author pahcko
 */
public class UploadAction extends org.apache.struts.action.Action {

private UploadForm validator;
    /*
     * forward name="success" path=""
     */
    private static final String SUCCESS = "success";
    private static final String FAILURE = "failure";

/**
     * This is the action called from the Struts framework.
     *
     * @param mapping The ActionMapping used to select this instance.
     * @param form The optional ActionForm bean for this request.
     * @param request The HTTP Request we are processing.
     * @param response The HTTP Response we are processing.
     * @throws java.lang.Exception
     * @return
     */
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        validator = (UploadForm) form;
        FileOutputStream outputStream = null;
        FormFile formFile;
        try {
            formFile = validator.getTheFile();
            String path = getServlet().getServletContext().getRealPath("") + "/"
                    + formFile.getFileName();
            outputStream = new FileOutputStream(new File(path));
            outputStream.write(formFile.getFileData());
        } finally {
            if (outputStream != null) {
                outputStream.close();
            }
        }
        return mapping.findForward(SUCCESS);
    }
}

In the struts-config I have

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd">

<struts-config>
    <form-beans>
        <form-bean name="UploadForm" type="Controladores.UploadForm"/>
    
    </form-beans>
    
    <global-exceptions>
    
    </global-exceptions>

<global-forwards>
        <forward name="welcome"  path="/Welcome.do"/>
    </global-forwards>

<action-mappings>
        <action input="/" name="UploadForm" path="/upload" scope="request" type="Controladores.UploadAction" validate="false">
            <forward name="succes" path="/Exito.jsp"/>
            <forward name="failure" path="/failure.jsp"/>
        </action>
        <action path="/Welcome" forward="/welcomeStruts.jsp"/>
    </action-mappings>
    
    <controller processorClass="org.apache.struts.tiles.TilesRequestProcessor"/>

<message-resources parameter="com/myapp/struts/ApplicationResource"/> 
    <plug-in className="org.apache.struts.tiles.TilesPlugin" >
        <set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml" />      
        <set-property property="moduleAware" value="true" />
    </plug-in>
    
    
    <plug-in className="org.apache.struts.validator.ValidatorPlugIn">
        <set-property
            property="pathnames"
            value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
    </plug-in>
</struts-config>

And when I run the aplication, and I select the file, the server send me the exception "javax.servlet.ServletException: java.lang.NullPointerException". I mean my File name is becoming null in action class.
And I don´t know why, I expect can help me. thanks btw I´m sorry for my english

private UploadForm validator;

Make the declaration inside the execute() method of the Action Class.
Its advised to do it in Thread Safe manner.

Regards,
Sandy

Your code is running perfectly fine in my Development Environment.
I am uploading .jpeg and .txt files.
Could you tell me what kind of files are you trying to Upload.

Regards,
Sandy

Hi Sandy Chatterjee, thanks for your reply. I'm trying upload a pdf file. and When debugging the project I realized that the FormBean returns the variable "thefile" null.

Really Running? I'm using NetBeans 7.1.2 and Struts 1.3.10, with the JDK jdk1.7.0_05 also I'm using GlassFish Server 3.1.2.
That could be happening?

I'm trying upload a pdf file. and When debugging the project I realized that the FormBean returns the variable "thefile" null.

Even pdf file is uploading in my system.

I'm using NetBeans 7.1.2 and Struts 1.3.10, with the JDK jdk1.7.0_05 also I'm using GlassFish Server 3.1.2.

I am using NetBeans 6.5 ,struts 1.2, JDK 1.5 and Glassfish 3.1.
But I don't think it has something to do with the version.
Do one thing start a completely new project in NetBeans and check.

Regards,
Ssandy

I started a new project but still not working. What happens is that when I click on the button to upload the file throws me the following page:

the page says: "The webpage is not available"
And I think that's the reason why the formBean sends null.

Fix it! Well, actually I changed my operating system, was using windows, and now I'm using ubuntu. But I think the problem is the jdk, and I saw in other forums that some people had the same problem as me, and the problem was the jdk. Solved the problem using JDK6.

Thank you!