Hi,
I have just finished a small maven core extension containing an EventSpy. It's working nicely if I include it into my build using Maven 3.3.1 and a ".mvn/extensions.xml", but I couldn't get it working by copying the jar to the MAVEN_HOME/lib/ext directory (I even tried a shaded jar). All I am getting are these warnings: [WARNING] Failed to notify spy org.apache.flex.utilities.converter.mavenextension.FlexEventSpy: java.util.NoSuchElementException role: org.apache.maven.execution.MavenSession roleHint: ?What is the difference between the two options? What do I have to change in order to have my extension working in older Maven versions (down to 3.1.1) by installing it into the lib/ext directory? Chris