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How to use META-INF/MANIFEST.MF for the .jar ?

Posted on 2006-07-03
Medium Priority
Last Modified: 2012-05-05
How to use META-INF/MANIFEST.MF for the .jar ?

I already hava a .jar file done by someone earlier ?
This .jar have several main classes but I know the one I have to use .

Now I have to develop another .jar file (some classes) for which I need this .jar in the classpath ???

But for my .jar to work, I need to invoke the main class from the other .jar (Confusing :)

How can I utilize MANIFEST.MF ...

Let me knw..

Question by:_Esam
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LVL 86

Accepted Solution

CEHJ earned 160 total points
ID: 17032611
You need to include the called jar in the


entry in the calling jar
LVL 86

Expert Comment

ID: 17032618

Author Comment

ID: 17032965
Not clear... !!!

>You need to include the called jar in the


entry in the calling jar


Pls clarify !

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LVL 23

Assisted Solution

Ajay-Singh earned 160 total points
ID: 17033084
let say the name of the jar file that is developed by someone else is lib.jar,
your jar file name is abc.jar and you want to invoke the main class "a.b.Main"
that is there in lib.jar, You can do this as -

java -classpath lib.jar:abc.jar a.b.Main
LVL 92

Assisted Solution

objects earned 80 total points
ID: 17033931
theres a discussion of the process here thaty may help:

for example if the other required jar was a.jar and it was in the same directory as your application jar you would add the follwoing to your manifest:

Class-Path: a.jar

You cannot specify the absolute location of the jar, it needs to be the location relative to the application jar
LVL 86

Expert Comment

ID: 17053997

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