Eclipse Luna SR2 RC4 (to be promoted as Luna SR2 next week, unless
critical issue is found) has been staged today. We'd like to update
the 4.42.0.Beta1-SNAPSHSOT Target-Platforms ASAP.
Please consider
https://issues.jboss.org/browse/JBIDE-19112?focusedCommentId=13042122&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13042122
for details and instruction to give it a try.