Re: Just can't figure out why these refuse to compile!

If I supply a valid local variable name, it seems to work fine:

private Map<SGID, Closure<SGMessage>> m1 =3D new LinkedHashMap<SGID,
Closure<SGMessage>> ()
private Map<SGID, Closure<SGMessage>> m2 =3D [:]

Cheers, Paul.

On Thu, Oct 30, 2025 at 2:52=E2=80=AFAM Tommy Svensson <[email protected]> =
wrote:
>
> Hello Groovy users,
>
> Both of the following totally refuses to compile and I mega fail in compr=
ehending why!!!
>
>     private Map<SGID, Closure<SGMessage >> =3D new LinkedHashMap<SGID, Cl=
osure<SGMessage >> ()
>     private Map<SGID, Closure<SGMessage >> =3D [:]
>
> Is it forbidden to put a Closure in a Map ? The Closure is a callback.
>
> I've used Closures before without problems. I totally fail to se the prob=
lem here.
>
> I prefer the second variant with [:] to define a Map.
>
> I'm using Groovy 5.0.0
>
> What am I  doing wrong here ????
>
> Best Regards,
>
> Tommy Svensson
>
> [email protected]
>
>
>