4.0.0 org.apache.maven.its.mng3899 parent 0.1 child Maven Integration Test :: MNG-3899 Test that build extensions are properly merged during inheritance. org.apache.maven.its.mng3899 b 0.1 org.apache.maven.its.mng3899 a 0.2 org.apache.maven.its.plugins maven-it-plugin-expression 2.1-SNAPSHOT validate eval target/extension.properties project/build/extensions