After some searches, i did discover a workaround, whereby i wrap my link widget with another composite, and it is that compoosite which holds the tooltip. So this seems to address all concerns.

Empty Dialog for downloading EAP is not sufficient -------------------------------------------------- Key: JBIDE-13597 URL: https://issues.jboss.org/browse/JBIDE-13597 Project: Tools (JBoss Tools) Issue Type: Enhancement Components: runtime-detection Affects Versions: 4.1.0.Alpha1 Reporter: Jaroslav Jankovič Assignee: Rob Stryker Fix For: 4.1.0.Alpha2 Attachments: JBIDE-13597.jpg Supposing you would like to use AS runtime but you don't have any. You can download and configure it when creating a project. This feature is not correctly enabled for EAP (product, not project), but IMO empty dialog for downloading EAP is not sufficient for users. There should be either some message that is not possible to download a product or link to that dialog should be not clickable at all.