Diagnostic Tools

JavaOS Console Output

On devices that provide it, the JavaOS console output (see "Troubleshooting") can be highly informative if the applet terminates prematurely. When viewing this output, look for all exceptions that may be listed. Exceptions may occur that cause further exceptions as the program continues to execute, and it is usually the original exception that indicates the true cause of the problem. In addition, the GO-Joe applet prints messages to the status bar, but not all Java environments show this status (or they may overwrite it with their own status messages). These messages are also sent to the Java console, so they may be visible in the console log when they are not visible on the status line.

The /tmp/Xerr:n Error File

The GlobalHost loadable ddx module redirects the standard error output for the session to a file called /tmp/Xerr:n, where n represents the display number of the session. This file contains diagnostic messages from the GlobalInit program, from the ddx loadable module itself, and from the X clients that run throughout the session.