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How can I build JAR files from IntelliJ IDEA properly?

Submitted by: @import:stackoverflow-api··
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Problem

I have a project that contains a single module, and some dependencies.

I'd like to create a JAR file, in a separate directory, that contains the compiled module. In addition, I would like to have the dependencies present beside my module.

No matter how I twist IntelliJ IDEA's "build JAR" file process, the output of my module appears empty (besides a META-INF file).

Solution

Instructions:

File → Project Structure → Project Settings → Artifacts → Click + (plus sign) → Jar → From modules with dependencies...

Select a Main Class (the one with main() method) if you need to make the JAR file runnable.

Select Extract to the target Jar

Click OK

Click Apply/OK

The above sets the "skeleton" to where the JAR file will be saved to. To actually build and save it do the following:

Build → Build Artifact → Build

Try Extracting the .jar file from:

📦ProjectName
 ┗ 📂out
   ┗ 📂artifacts
     ┗ 📂ProjectName_jar
        ┗ 📜ProjectName.jar


References:

  • (Aug 2010) Quickly create a JAR artifact for an application (Here's how to build a JAR file with IntelliJ IDEA 10)



  • (Mar 2023) Package an application into a JAR

Code Snippets

📦ProjectName
 ┗ 📂out
   ┗ 📂artifacts
     ┗ 📂ProjectName_jar
        ┗ 📜ProjectName.jar

Context

Stack Overflow Q#1082580, score: 840

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