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Editorial Team
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Asked: 2026-05-28T07:38:14+00:00

Hi all, I have about 10 jars and when I run my program I

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Hi all,

I have about 10 jars and when I run my program I invoke the following:

java -Xmx1024m -cp a.jar;b.jar;c.jar;whatever.jar -Dfile.encoding=UTF-8 [package][class]

I want to make this as an executable jar. I thought that when I unjar (that sounds weird, but I’m using java command – not using general zip program) the jar containing [package][class], update manifest.mf and rejar it. Unfortunately, this did not work.

Is it possible for me to make it as an executable jar or I should unjar it and sum it all?

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1 Answer

  1. Editorial Team

    You just need this line in your manifest file

    Main-Class: my.package.Main

    Then run the jar command with the m flag, and give it the name of your manifest file:

    jar cmf manifest main.jar *.class

    Unfortunately, jars can’t contain other jars. Give the jar containing your entry point a Main-Class, and then set the classpath so that the other 9 jars are accessible.

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