The problem with having a version-specific connector called "Hibernate Tools (Indigo) 3.x/4.x" and pointing it at the "rolling site" http://download.jboss.org/jbosstools/updates/development is that in a few months that site will have JBT 3.4.M1, which will only work on JUNO, not Indigo.
This entry (renamed) now works:
http://marketplace.eclipse.org/content/hibernate-tools-helios (was http://marketplace.eclipse.org/content/hibernate-tools)
Version Number: 3.4
Eclipse Versions: 3.5 (should be 3.6.2)
http://download.jboss.org/jbosstools/updates/stable/helios/ --> org.hibernate.eclipse.feature_3.4.0.v20111025-0625-H210-Final
http://marketplace.eclipse.org/content/hibernate-tools-0
Version Number: 3.4
Eclipse Versions: 3.6 (should be 3.7.2)
-> http://download.jboss.org/jbosstools/updates/development
--> should be http://download.jboss.org/jbosstools/updates/development/indigo/ --> org.hibernate.eclipse.feature_3.4.0.v20120504-2121-H72-Beta3
The problem with having a version-specific connector called "Hibernate Tools (Indigo) 3.x/4.x" and pointing it at the "rolling site" http://download.jboss.org/jbosstools/updates/development is that in a few months that site will have JBT 3.4.M1, which will only work on JUNO, not Indigo.