Using Java Console

When ActiveX/Java Uploader is utilized in non-Internet Explorer browsers (Firefox, Safari, and etc.), it uses java applet as a client-side application. Java applets provide a feature which is very useful when it is necessary to get additional information about some problem: special console where the applet can trace various debug information. This topic describes how to get information from the Java console.

Using Java Console

Opening Java Console on Windows

Open Control Panel, click Programs, then select Java.
Switch to Advanced tab.
Select Show Console.
Click the Apply button and close the Java control panel.
As soon as you run the browser with any Java applet, the console window will appear.

Opening Java Console on Mac OS X

Open System Preferences and click Java.
Switch to Advanced tab.
Select Show Console.
Click the Apply button and close the Java control panel.
As soon as you run the browser with any Java applet, the console window will appear.

Java Console Usage

After you open Java console, use ActiveX/Java Uploader to reproduce the problem. Debug information will be automatically dumped into the console.

You can set the trace level - the parameter that determines how much debug information should be displayed. This value can be a number from 1 (brief) through 5 (most verbose).

To select a trace level, just type a number from 1 through 5 in the console.

Other console commands are displayed in the beginning of the console output. Moreover, you can display this list of commands by typing h in the console.

What Information Can Be Found?

ActiveX/Java Uploader writes various information into the console. Some information makes sense for developers only, but some information can be useful for you as well, for instance:

version number of the Uploader8.jar
cookies which are recognized by ActiveX/Java Uploader and are about to be sent to the server
additional POST fields which will be sent to the server
HTTP response from the server (HTTP code as well as HTML generated by the upload processing page)
and any other details

If you create a support case, the console output may help to find out the reason of the problem and its resolution.