Mass Relocator for Gradle Shadow

This is a Gradle plugin which makes the shadowJar task relocate all dependencies which can be moved. It is useful when the shaded jar is loaded as a plugin and its dependencies may be overridden with those which had already been loaded before, causing issues with version conflicts (NoSuchMethodError and similar).

A package is moved when:

• It contains at least one class.
• None of the classes in the package contain a native method.
• It is not explicitly excluded.

Link to its Gradle plugin repository page: https://plugins.gradle.org/plugin/com.sedmelluq.mass-relocator

Usage

The plugin first needs to be included:

plugins {
  id 'com.sedmelluq.mass-relocator' version '1.0.0'
}

Then it can be configured to set the base package where everything is moved and specifying excludes. For example:

massRelocator {
  base 'myapp'
  excludePrefix 'org/apache/commons/logging'
}

This would prepend myapp. to the name of all packages, meaning it moves all of them into myapp/ directory in the JAR file. Sometimes some packages cannot be moved because their location is used as a string (in case of the commons logging in the example above), so those should be added as excludes.