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From Eric Giguere <>
Subject Re: Creation of an executable jar problem
Date Tue, 01 Feb 2005 17:44:48 GMT
Do you have your Main-Class entry in the manifest?


Eric Rotick wrote:

>I've created an executable jar. When I run it with
>java -jar myjar.jar
>I get the NoClassDefFoundError: error.
>I've looked in the list archives and there are several posts about ant
>not creating an executable jar correctly but none of these come to any
>real conclusion as to why.
>I've extracted the jar and everything looks OK. I then created a new
>jar from the command line with the extracted contents and this works.
>One other thing is that the sizes of the two jars are different. If a do a
>jar tvf 
>on each of them, the contents are exactly the same size.
>I'm not creating a jarindex on either of them and I make sure that
>both are compressed or both are not. When compressed the difference is
>about 100 bytes and when not compressed the difference is 8 bytes.
>Any ideas.
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