Maven Injection Plugin

The plugin inject-maven-plugin lets you inject Maven properties into your compiled code as part of your build process.

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What is it good for?

You can use the plugin to inject any properties, such as build information like build time or SCM version (provided as Maven properties by buildnumber-maven-plugin). The plugin hooks into the Maven lifecycle process-classes - so after compilation but before packaging into e.g. JAR.

Note:

• It is possible to inject into Java constants, but be aware of that the Java compiler inlines values during compilation.
• It is possible to inject into Java class attribute fields, but be aware the Java compiler inlines initialization into constructor, resulting in multiple initializations with last initialization wining.
• Preferred injection is into accessor methods, resulting in the least amount of surprise by compiler/JVM initialization specifics :-)
• The plugin uses ByteBuddy byte code injection library
• Check injection, e.g. using the Java Class File Disassembler (javap) on the target class:
  javap -p -constants -c -s -cp ./target/it/inject/target/classes de.m3y.maven.inject.it.ExampleInjection

Check out the plugin website including usage for details.

Requirements

• Maven 3.9 or higher
• Java 8 or higher

Development

• Build the plugin

  mvn clean install

  Make sure you got Maven 3.9+ or higher.

• Build the site

  mvn clean site site:stage scm-publish:publish-scm -Psite

• Release

  mvn release:prepare -Prelease
  mvn release:perform -Prelease
  

• Deploy snapshot

  mvn clean deploy -Prelease

  Note: The release profile contains the snapshot repository for distribution management