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Windows 7: jar file not working in Windows 7

28 Feb 2010   #1

Windows 7
jar file not working in Windows 7


The scenario is as follows:
I used to run a little jar file coded by me in XP, but now that I am using Windows 7 it doesn't work any more.
My java version is Version 6 Update 18

I get the following message:

Exception in thread "main" java.lang.NoClassDefFoundError:
Caused by: java.lang.ClassNotFoundException:
at$ Source)
Could not find the main class: C:\SMFilesGenerator.jar. Program will exit

I would appreciate it so much if you could help me.

My System SpecsSystem Spec
01 Mar 2010   #2


By default, applications dont have rights to access the root of c:\. Try moving the jar file to your documents folder and run it from there.
My System SpecsSystem Spec
02 Mar 2010   #3

Windows 7

Thanks for your reply
I tried moving it to 'My Documents' folder, but it is still not working. Today I installed the jdk-6u18-windows-i586, to see what happens, but there has been no change.
[COLOR=#000000 ! important][/COLOR]
My System SpecsSystem Spec

16 Feb 2016   #4

Windows 7 Professional

From CNet Downloads:
JAR_Runner - Free download and software reviews - CNET
"JAR_Runner locates the current Java installation, calls the appropriate application (JavaW.exe), & directs it to run the JAR file. It integrates right into the Windows system & also has a CMD/DOS command line option."

Download direct from JAR_Runner Site:

Alternatively, try JARFix:
My System SpecsSystem Spec

 jar file not working in Windows 7

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