manifest.mf is overwritten by eclipse during jar export

Question

I would like make an executable jar archive with eclipse. So into my project I created file src/META-INF/MANIFEST.MF :

Manifest-Version: 1.0
Main-Class: MainClass
Class-Path: .

But when I export my java eclipse project eclipse warn me with following message:

"JAR export finished with warnings. See details for additional information. myproject/src/META-INF/MANIFEST.MF was replaced by the generated MANIFEST.MF and is no longer in the JAR."

Anyone know how I can avoid this when I export my project in eclipse?

Answer 1

While exporting the jar, select the option to use existing manifest and browse to the manifest file of your project. The generated jar will have that manifest file now.

Using existing manifest http://img46.imageshack.us/img46/6752/export.png