Configures the path to Eclipse external annotations for null analysis on the Maven Dependencies and JRE containers classpath containers, and sets JDT compiler configuration:

1. Allows to configure Java Compiler Project Properties from maven-compiler-plugin; read either from a dependency of maven-compiler-plugin containing a org.eclipse.jdt.core.prefs file, or from configuration/compilerArguments/properties.

2. Allows to configure the path to external annotations for the Maven Dependencies and JRE classpath containers. The path is

   • either taken from the m2e.jdt.annotationpath property in POM files, if it exists. This is used to configure one single archive of *.eea for ALL Maven dependencies AND the JRE.

   • or taken from the different properties in POM files. This is used to configure different locations for JRE and Maven dependencies.

     • m2e.eea.annotationpath.jre: The annotation path for JRE
     • m2e.eea.annotationpath.maven: The annotation path for Maven dependencies
     • m2e.eea.annotationpath.pde: The annotation path for required PDE plugins

   • or by individually associating archives on the projects main (not maven-compiler-plugin) dependencies with classpath entries, based on a eea-for-gav marker file in the *-eea.jar which indicates for which Maven GAV it holds external annotations.

p2 update sites to install this from:

• Recent Eclipse versions (>= 2022-09)
  https://www.lastnpe.org/eclipse-external-annotations-m2e-plugin-p2-site/m2e_2/
• Older Eclipse versions (<= 2022-06)
  https://www.lastnpe.org/eclipse-external-annotations-m2e-plugin-p2-site/

These URLs will work with Eclipse but return a 404 error in browsers because they do not have an index.html file.

You can also build it yourself:

git clone https://github.com/lastnpe/eclipse-external-annotations-m2e-plugin.git
./mvnw clean package

See usage examples in lastnpe/eclipse-null-eea-augments/examples/ (or sylvainlaurent/null-pointer-analysis-examples for the older single EEA approach).

If you like/use this project, a Star / Watch / Follow on GitHub is appreciated.

See also https://www.lastnpe.org/