Call non-virtual protected methods from a Java/C# subclass in Clojure/ClojureCLR

Question

When making a subclass in Clojure using gen-class, you can expose protected virtual(non-final) methods through exposes-methods, however it is implemented through overriding, which cannot work for non-virtual(final) methods.

Is the only way to call a protected method this way through reflection?

Can reify or proxy do this better than gen-class?

What do you mean by "non-vritual methods" here? Static? Final? — ivant
– ivant, Commented Mar 8, 2013 at 9:41
In c# the term is virtual. In java I believe methods are virtual by default, but final means non-virtual. — Devin Garner
– Devin Garner, Commented Mar 8, 2013 at 9:42

Devin Garner · Accepted Answer · 2013-03-15 15:38:48Z

1

This turned out to be a bug in clojure-clr. It probably works fine in the JVM version. Clojure does allow calling non-virtual/final methods if they're protected/public. However, the method I was trying to call was protected internal, which actually means protected or internal. clojure-clr was incorrectly interpreting this as protected and internal, internal meaning only accessible within the same assembly. Due to this, my method call was failing.

This has been fixed in the latest version of clojure-clr.

answered Mar 15, 2013 at 15:38

Devin Garner

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