How do I make a fat jar with Gradle?

To build a Fat JAR, you need to configure the Shadow plugin first:

1. Open the build.gradle.kts file and add the plugin to the plugins block: plugins { id(“com.github.johnrengelman.shadow”) version “7.1.2” }
2. Make sure that the main application class is configured: application { mainClass.

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Then, does Gradle build create jar?

In this tutorial, we will show you how to use Gradle build tool to create a single Jar file with dependencies. Tools used : Gradle 2.0.

Subsequently, how do I create a Gradle project in IntelliJ jar?

Create an executable JAR file

gradle file to open it in the editor. in the editor to load the changes to your project. In the Gradle tool window, open the project’s node, then the Tasks node and double-click the build task to run it. IntelliJ IDEA creates the build directory that contains our JAR file.

How do I create an executable jar of Maven project?

Now we can start using the various solutions.

1. 2.1. Manual Configuration. Let’s start with a manual approach with the help of the maven-dependency-plugin. …
2. 2.2. Apache Maven Assembly Plugin. …
3. 2.3. Apache Maven Shade Plugin. …
4. 2.4. One Jar Maven Plugin. …
5. 2.5. Spring Boot Maven Plugin. …
6. 2.6. Web Application With Executable Tomcat.

14 Related Question Answers Found

How do I get uber Maven jar?

To create an executable uber JAR, one simply needs to set the main class that serves as the application entry point:

2. …
6. org. apache. maven. plugins
7. maven-shade-plugin
8. 3.3. 0

How do I run a jar file?

If you need to run the jar file by double clicking on it, you have to

1. Open a notepad.exe.
2. Write : java -jar Example. jar.
3. Save it with the extension . bat.
4. Copy it to the directory which has the . jar file.
5. Double click it to run your . jar file.

How do I use Maven fat jar?

Maven one-jar plugin, add the dependency jar file directly into project jar, and loads it with custom class loader.

1. Review a Java project. Previous Java project (dateutils) will be reused, see following folder structure. …
2. Pom. xml. …
3. Package It. …
4. Review It.

How do you make a fat jar?

Maven can build a Fat JAR from your Java project. A Fat JAR is a single JAR file that contains all the compiled Java classes from your project, and all compiled Java classes from all JAR files your project depends on (see Maven Dependencies).

How do you shade in Gradle?

Step-by-step shading with Gradle

1. Add the plugin. First we need to add the plugin we will be using. …
2. Configure the top-level dependency we want to shade. Add a dependency on the jar you wish to shade. …
3. Configure any transitive dependencies we don’t want to shade. …
4. Set up the packages we want to relocate. …
5. Publish our shaded jar.

What is a fat jar?

An uber-JAR—also known as a fat JAR or JAR with dependencies—is a JAR file that contains not only a Java program, but embeds its dependencies as well. This means that the JAR functions as an “all-in-one” distribution of the software, without needing any other Java code.

What is Java shadowJar?

Shadow is a plugin that packages an application into an executable fat jar file if the current file is outdated. Tutorials → Working with JAR files → Fat JAR files. The task shadowJar (e.g., running the command gradlew shadowJar or gradlew clean shadowJar ) creates the JAR file in the build/libs folder.

What is shadow jar in Gradle?

Shadow is a Gradle plugin for combining a project’s dependency classes and resources into a single output Jar. The combined Jar is often referred to a fat-jar or uber-jar.

What is uber jar Maven?

For Java Developers who use SpringBoot, ÜBER/FAT JAR is normally the final result of the package phase of maven (or build task if you use gradle ). Inside the Fat JAR one can find a META-INF directory inside which the MANIFEST. MF file lives with all the info regarding the Main class.

What’s a shadowJar?

shadowJar is an extra plugin and not a synonym, it creates different jar then the jar tasks of Gradle.

Where do Gradle dependencies go?

Gradle declares dependencies on JAR files inside your project’s module_name /libs/ directory (because Gradle reads paths relative to the build. gradle file).

Which build plugin allows you to create a fat JAR file that contains all of the dependencies?

Maven is one of the most used tools for Java application development. Maven packaging will create a Jar file without dependencies. Maven provides other plugins using which we can generate the jar with all its dependencies which is usually called FatJar, which is used as an executable Jar file.

Which build plugin allows you to create fat jar?

Luckily Maven provides a plugin named Apache Maven Shade Plugin for creating a distributable jar with all the dependencies. Such a jar is know as a fat jar (also called uber jar) since it is substantially larger than the original. Maven Shade Plugin works by modifying the maven package task.

Why do we need fat jar?

Fat jar or uber jar is a jar which contains all project class files and resources packed together with all it’s dependencies. There are different methods for achieving such effect: dependencies’ jars are copied into main jar and then loaded using special class loader (onejar, spring-boot-plugin:repackage)