Deadlock when running JBoss Tools Project Validator on startup -------------------------------------------------------------- Key: JBIDE-25696 URL: https://issues.jboss.org/browse/JBIDE-25696 Project: Tools (JBoss Tools) Issue Type: Bug Components: cdi, common, jst Environment: JBoss Developer Studio 11.2.0.GA, Windows 10 Reporter: Vsevolod Golovanov Assignee: Jeff MAURY Priority: Blocker Fix For: 4.12.0.Final Attachments: lockedup.png, threaddump-1518088511239.tdump The workspace is one EAR project, a couple dozen EJBs, 2 WARs, a couple dozen JAR webfragments (deployed inside the WARs), some misc projects - 67 projects alltogether. When opening it sometimes locks up completely - UI is not responding, process CPU is at 0%. Here's what it looks like: !lockedup.png|thumbnail! This time I just opened the Problems view and clicked Markers, which never opened. But I don't think this isn't necessary, pretty sure it sometimes hangs without clicking anything at all. It always shows JBoss Tools Project Validator in the Progress view when this happens. VisualVM reports a deadlock, seems to be JBoss Tools Validator related: [^threaddump-1518088511239.tdump] I think this used to happen with JBDS10 too, but I don't know for sure, because I don't have the threaddumps.