Hi Andy Guibert, indeed the TCK expects presence of a JavaFX implementation. Otherwise, we couldn't test the JavaFX support defined by the spec. This requirement is described in section 3.2 The TCK Environment of the TCK docs. In other words, those tests aren't considered optional.

You could try to install OpenJFX and make it available to the TCK. Depending on your platform, there may be a ready-made package available (e.g. seems to be the case for Ubuntu). An alternative would be to build OpenJFX from source. I realize it's not necessarily a trivial set-up, but we weighed towards extensive TCK coverage as much as possible.