引用Java超类的属性时使用groovy'super'关键字

Question

I've inherited a large groovy/java project and I am stumbling upon a usage pattern that just doesn't seem to work, but I can't figure out why.

My predecessor makes frequent use of a java superclass and many groovy subclasses. In the subclasses, he has getters that perform a lazy initialize and then, through the use of a property, set a value on the super class. Unfortunately, this seems to throw a NoSuchFieldError.

I was able to reproduce this in a small test case, given below. Essentially, referencing a property as "super.property" is throwing a NoSuchFieldError, but referencing it as just "property" works fine.

Here's some Java base classes:

public interface Content {
     public String getValue();
}

public class HolderJava {
     private Content _content;
     public Content getContent() { return _content; }
     public void setContent(Content value) { _content = value; }
}

And here are some groovy classes that extend them:

class ContentGroovy implements Content {
     def     value
     public String getValue() {
         value
     }
}

class HolderGroovy extends HolderJava {
     public ContentGroovy getContent() {
         ContentGroovy    newContent = new ContentGroovy()
         newContent.value = "snarf"

         // doesn't work, throws NoSuchFieldError
         //super.content = newContent

         // works
         content = newContent

         newContent
     }

     public static void main( String[] args ) {
         println( new HolderGroovy().getContent().getValue() )
     }
}

Answer 1

seemed to work fine when I pasted the code into GroovyConsole. Is the Java pre-compiled or compiled with groovyc?