Make it more obvious that Groovy 2.5 is optional

[digulla]

When installing the Groovy plugin from the Marketplace, the only available compiler is Groovy 2.5. There is little indication in the UI that the plugin comes with 2.4 and that 2.5 is purely optional which can lead to the InvalidRegistryObjectException issue described in #317

Please add " (optional; without this, you get 2.4)" or similar to the entry for 2.5 or add 2.4 as a mandatory dependency visible in the Marketplace client.

[eric-milles]

This is what the update site looks like:

And this is what it looks like in the Marketplace listing:

Groovy 2.5 and Maven support have been marked as Optional for some time. I don't know what that looks like on the install client side. Maybe this is an issue for the Marketplace Client team to make Optional appear more clearly.

[digulla]

Here is how it looks in the Marketplace Client:

As you can see, 2.4 and 3.0 are not mentioned at all. This is very confusing.

How about setting the install state for 2.5 to "Optional" (not selected)?

[eric-milles]

In your screenshot "Eclipse Groovy Development Tools" is marked "required". I make Groovy 2.5 optional, but selected because it is the current Groovy release.

[digulla]

How about making 2.4 visible and optional + deselected in this screen? That way, it wouldn't like you get nothing if you deselect 2.5 plus you can select 2.4 without 2.5 and avoid the InvalidRegistryObjectException issue when setting up a new workspace.