Re: Windows batch file throws java.lang.Exception unless you click onto GUI

"Oliver Wong" <>
Thu, 5 Apr 2007 18:25:22 -0400
<> wrote in message

I wrote an MS-DOS file to do batch work onto a particular Java
application I wrote to dynamically build another MS-DOS batch file.
The first MS-DOS batch file only works if you click onto the GUI in
Windows; if you try to use command-line it fails.

Here is the very short code of the first MS-DOS batch file:

@echo off
java -cp Tools.jar;IVC.jar com.ppowell.ivc.EnvReader
call setenv.bat
if ERRORLEVEL 2 pause
cd %java_jar_path%
java -cp Tools.jar;Beans.jar;GUI.jar
if ERRORLEVEL 2 pause

But here are the error messages if you try to use command line:

C:\Documents and Settings\me>"C:\Documents and Settings\me\classes
Exception in thread "main" java.lang.NoClassDefFoundError: com/ppowell/
'setenv.bat' is not recognized as an internal or external command,
operable program or batch file.
C:\Documents and Settings\me
Exception in thread "main" java.lang.NoClassDefFoundError: com/ppowell/

Again, I click onto the Windows GUI, all is well; if I try to use
command-line instead, the above-mentioned errors are produced.

What should I be doing to ensure that the MS-DOS batch file will work
with the Java apps more preferably within command-line (will
ultimately be housed within a web application)?

    I suspect the current directory is well defined when you're at the
command line, but not so clearly defined when in the GUI. Try creating a
shortcut to the BAT file which will explicitly set the current directory.

    - Oliver

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