slawekjaranowski commented on code in PR #126:
URL: https://github.com/apache/maven-plugin-tools/pull/126#discussion_r928800853


##########
maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/Parameter.java:
##########
@@ -72,6 +72,13 @@
      */
     String defaultValue() default "";
 
+    /**
+     * Defines the implementation in the case the parameter type is an 
interface.
+     *
+     * @return the implementation class name
+     */
+    Class<?> implementation() default Object.class;

Review Comment:
   Ok, I think it is never mind (probably) if implementation will be string or 
class for `parameter` annotation is used in plugin itself not in plugin 
configuration.
   Finally class must be on plugin classpath.
    
   We also have `implementation` attribute for configuration ... 
https://maven.apache.org/guides/mini/guide-configuring-plugins.html#mapping-complex-objects
   
   Now I don't know which one wins implementation from parameter annotation / 
javadoc tags ... or from configuration ... 
   
   😄 



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