What is a shadowJar?

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

Similarly one may ask, how do you make a Gradle shadow jar?

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

Open the build.gradle(.kts) file and add the plugin to the plugins block: plugins { id ‘com.github.johnrengelman.shadow’ version ‘7.0.0’ }
Add the shadowJar task: shadowJar { manifest { attributes ‘Main-Class’: ‘com.example.ApplicationKt’ } }

Similarly, how do you shade a library? To Shade a library is to take the contents files of said library, put them in your own jar, and change their package. This is different from packaging which is simply shipping the libraries files in side your own jar without relocating them to a different package.

Consequently, how do you shade in Gradle?

Step-by-step shading with Gradle

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

How do you use a shaded jar?

Shading provides a way of creating an uber JAR and renaming the packages which that uber JAR contains.

You create an uber JAR which contains v1. 0.0 of the Foo library.
Someone else uses your uber JAR in their application, Bar.
The Bar application has its own dependency on Foo but on v1. 2.0 of that library.

What are shadow dependencies?

Shadow configures the default shadowJar task to merge all dependencies from the project’s runtimeClasspath configuration into the final JAR. This means any dependency declared in the runtimeOnly configuration would be not be included in the final JAR. …

What is a Gradle configuration?

A “configuration” is a named grouping of dependencies. A Gradle build can have zero or more of them. A “repository” is a source of dependencies. Dependencies are often declared via identifying attributes, and given these attributes, Gradle knows how to find a dependency in a repository.

What is an Uberjar?

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 COM Github Johnrengelman shadow?

A Gradle plugin for collapsing all dependencies and project code into a single Jar file. https://github.com/johnrengelman/shadow.

What is Gradle application plugin?

The Android plugin for Gradle works with the build toolkit to provide processes and configurable settings that are specific to building and testing Android applications. … The output of the build is the same whether you are building a project from the command line, on a remote machine, or using Android Studio.

What is mergeServiceFiles?

Using mergeServiceFiles() merges (or concatenates in this case) the BeanDefinitionReference files of both the projects so that at runtime, you get all the beans defined. More details can be found in the gradle forum topic here.

What is shadowJar in Gradle?

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.