Re: is it possible to package a Java application in one jar that includes everything?

From:
Lew <noone@lewscanon.com>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 20 Feb 2012 14:28:26 -0800
Message-ID:
<jhuhe9$rma$1@news.albasani.net>
On 02/20/2012 12:48 PM, Fredrik Jonson wrote:

In<jhsau8$8oo$1@speranza.aioe.org> Nasser M. Abbasi wrote:

  Is it possible to package my Java application, including all and any
  other Java code, that I might have downloaded from the web and used, into
  one jar file.


You can. If you use maven for build management you can use the shade plugin
to build such "uberjars". I believe there are similar utilities for ant.


You can, but you shouldn't.

https://maven.apache.org/plugins/maven-shade-plugin/

  I've done something like this before, and I remember using Makefiles and
  the jar.


Yes, jar files are just a zip container for class files so that is
possible. You can put whatever files (resources) you like in the jar, not
only class files.

If you have more than one project I'd strongly recommend avoiding Makefiles
nowdays and using maven, ant, ivy or some other special purpose build
management tool for java.

https://maven.apache.org/guides/getting-started/maven-in-five-minutes.html


I am not a big fan of Maven. It's too clever by half. If you aren't really,
really careful it can create a mess from incompatible dependencies on
third-party JARs, and often quietly updates things without notification so you
don't have good control over your dependency versions without a lot of effort.

--
Lew
Honi soit qui mal y pense.
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