Scala的Java可变长度参数

Question

I am implementing an extension of an abstract class from that library which has this signature:

Object filter(Object var, JinjavaInterpreter interpreter, String... args);

Which I think I should implement as the following in Scala

def filter(obj: Any, jinjavaInterpreter: JinjavaInterpreter, args: String*): Any = {
...
}

However, when I try to access items from args (eg args(0) , I get type coercion errors: Cannot coerce '0' of class java.lang.String to class [Ljava.lang.String;

Answer 1

It seems the coercion errors means that class String can't be cast to String[]:

Cannot coerce '0' of class java.lang.String to class [Ljava.lang.String;

I bet args(0) is of class String which is correct.

Your signature is correct and I also bet that the error is other else.