GWT 2.9 upload file error

[Yibin Li]

I upgrade a project from GWT 2.5.1+Java 8 to GWT 2.9 +Java 11

I got (TYpeError): Cannot read property 'Xe' of null when I 

IUploader currentUploader = new Uploader(fileInputType, autoSubmit);//autosubmit = true

IUploadStatus statusWidget = new IUploadStatus();

try{

currentUploader.setStatusWidget(statusWidget);

}catch(Exception e){

   //print error here

   // (TYpeError): Cannot read property 'Xe' of null got printed here

}

This code does not have any problems when I use GWT 2.5+Java 8

//Symptom 

The upload file GWT File control is shown. I can clicked the control and select a file to upload

The control shows the selected file name but it does not call http servlet that is on server side.

Web.xml

<servlet>     

<servlet-name>uploadServlet</servlet-name>          

<servlet-class>

             edu.vanderbilt.mc.aries.server.rpc.control.AttachmentUploaderService

        </servlet-class>   

</servlet>   

<servlet-mapping>     

<servlet-name>uploadServlet</servlet-name>     

<url-pattern>*.gupld</url-pattern>   

</servlet-mapping>

I ggogled the erro rmessage. It seems that this is a JQuery error

Any suggestions or comments are really appreciated

Yibin Li 

[lofid...@gmail.com]

What kind of "Uploader" component do you use?

Thanks,

Lofi

[Yibin Li]

import gwtupload.client.IFileInput.FileInputType;

import gwtupload.client.IUploadStatus.Status;

import gwtupload.client.IUploader;

import gwtupload.client.IUploader.OnChangeUploaderHandler;

import gwtupload.client.IUploader.OnFinishUploaderHandler;

import gwtupload.client.MultiUploader;

import gwtupload.client.Utils;

This is what I use in project

The Jar is gwtupload-1.03.jar

Only this version is compliable for GWT 2.9

[Yibin Li]

I have made upload file working. We have custom statuswidget that is using  IUploadStatus interface. This caused prblem

in Web.xml

<servlet-mapping>     

<servlet-name>uploadServlet</servlet-name>     

<url-pattern>*.gupld</url-pattern>   

</servlet-mapping>

What I did is 

1. DO not use  *.gupld  -- replaced by real servlet 

2.  Do not set status Widget -- >  //commented out currentUploader.setStatusWidget(statusWidget);

[Oleg Ravun]

I use gwtupload.client.MultiUploader . Do you set servlet path - setServletPath()?

I don't call setStatusWidget. 

Thanks,
Oleg

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[Yibin Li]

Yes.

setServletPath() to call upload servlet