jni.d inheriting from java interfaces

[John-Colvin]

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Is this possible? Just noticed interfaces and classes are all translated asfinal class 😱 and there's a comment saying

	// so overriding Java classes from D is iffy and with separate implementation
	// non final leads to linker errors anyway...

so maybe this is a genuinely hard problem?

[adamdruppe]

I know on Android it was just plain impossible to generate new classes through JNI, so I dropped it, but with regular Java it would be possible, in theory, to generate some Java bytecode that has a stub class forwards to a D class and subclass things that way. But yeah, it is easier said than done.

The best way to use this is to call Java methods from D and then write little Java classes in Java with native methods you implement on the D side. This makes doing things like callbacks a pain since all those delegate classes will need Java stubs.