JVM 1.4.2_03 error no main class found

Hello,
A very strange error encountered "main class not found" on running the application written using JDK 1.4.1_01 on JVM 1.4.2_03 on XP OS. The same application works perfectly well on JVM 1.4.1_01 on XP OS.
The said application has not been modified since six month and has been working in live environment under JVM 1.4.1_01.
Any answer to this.
Thanks
bhbm

Sounds like you're trying to run it from a Jar ?
Eg. java -jar myapp.jar
Trying running "jar -tf myapp.jar" to see if the jar is still valid / not corrupt.
Ensure you use the jar command from 1.4.2_03, to validate whether the jar format, manifest information etc can be read using that version.
regards,
Owen

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