How to build a stand-alone scala executable

Question

I am trying to create a standalone .exe file (or something equivalent) from a scala project I have started. I need to create this in such a way thet the person using the application has to do the least amount of work possible (double-click an installer or just the .exe file). What are my options?

They're identical to building a Java application. Depending on your OS and development environment you should be able to Google up a solution. — Donald.McLean, Jul 03 '12 at 15:01
Any reason you tagged this Scala and not Java? If you are using Scala, are you using sbt to build your project? If so, have you look at the [plugins](http://www.scala-sbt.org/plugins.html). There is `sbt-assembly` to create a double-clickable jar, and izpack to create an installer. Also [this question](http://stackoverflow.com/questions/1967549/java-packaging-tools-alternatives-for-jsmooth-launch4j-onejar) — 0__, Jul 03 '12 at 15:16
Java 8 will also make it easier by enabling people to build "native" packages like exe, deb, rpm etc. — soc, Jul 03 '12 at 15:41
As others have said, its no different to how you would do for Java. I like [JSmooth](http://jsmooth.sourceforge.net/) — aishwarya, Jul 03 '12 at 19:52
You are trying to build _a stand-alone **scala** executable_ _from a **java** project_ ? Makes no sense for me. I guess you might be looking for a self executable jar. — user272735, Jul 04 '12 at 04:18
Sorry for the mess-up, I meant from a Scala project. I have edited the post. — Henry Henrinson, Jul 04 '12 at 08:42
"Why do you want to _execute_ a Scala program? Scala is meant to only for proving that your C.S. thesis compiles." -- quote by me ;) — conny, Jan 16 '19 at 06:56

score 6 · Answer 1 · edited Feb 24 '14 at 17:11

Take a look at ej-technologies the creators of JProfiler, they have a couple of products that might be useful to you, quoting from their product page:

install4j A cross platform Java installer that generates native installers and application launchers for your Java applications.
exe4j A Java exe maker that helps you integrate your Java applications into the Windows operating environment.

These are both commercial products and although I haven't used them, I have used JProfiler for many years.

score 6 · Accepted Answer · answered Jul 04 '12 at 08:52

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Have a look one OneJar. There is also a sbt plugin here

answered Jul 04 '12 at 08:52

Yo Eight

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score 3 · Answer 3 · answered Mar 26 '14 at 03:41

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I've heard of this one: Lauch4j.

According to the site:

It's possible to wrap applications on Windows, Linux, Mac OS X and Solaris

answered Mar 26 '14 at 03:41

Dielson Sales

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score 2 · Answer 4 · answered Jul 04 '12 at 08:51

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IzPack plugin for SBT might be useful.

Even scala itself uses it: They use IzPack

answered Jul 04 '12 at 08:51

Petro Semeniuk

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How to build a stand-alone scala executable

4 Answers4