Weird exception “Invalid receiver type class java.lang.Object; not a subtype of …”

Question

I\'m getting this strange exception in code run using jre1.8.0_66:

Exception in thread \"main\" java.lang.BootstrapMethodError: call site initialization exce         


        

Answer 1

I believe you are just trying to reference a method from the interface with no return.

ie:

Fruit::getPickingMonth; //cant return anything

I would imagine you would want something like

Apple::getPickingMonth;
or
Orange::getPickingMonth;

Instead

If the above isn't the solution it might be a casting issue where the compiler doesn't know what to return on the bytecode level.

There are questions like this on StackOverflow

Lambda Referencing

Lambda Conversion Exception