javac error: inconvertible types with generics?

Question

There are several other SO questions talking about generics compiling OK w/ Eclipse\'s compiler but not javac (i.e. Java: Generics handled differenlty in Eclipse and javac a

Answer 1

Perhaps it is because you've declared E as something that extends Enum. I can't say I understand it completely, but it looks like it limits the set of types to some subset that can't include LogEvent.Type for some reason. Or maybe it's just a bug in the compiler. I'd be happy if someone could explain it more clearly, but here is what you can do:

public > void postEvent(E code) 
{
    if (code instanceof LogEvent.Type)
    {
        LogEvent.Type scode = (LogEvent.Type)code;
        ...
    }
    ...

This works and it is more elegant than just casting to an Object.