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Created attachment 159964 [details] Jstack dump/log When starting NB it hangs forever. Deleting /Users/ajg/Library/Application Support/NetBeans/8.1 will allow me to start NB. I have not been able to track down to which setting is causing the issue. However, the stack trace does show 2 subversion threads waiting on the same object. JConsole deadlock detection says there is none, but this looks like deadlock to my eyes. Attached are my stack trace and messages.log.
Created attachment 159965 [details] messages.log
I don't see any deadlock, not even in subversion threads. The fact that two threads are waiting for the same lock does not mean there is a deadlock. AWT is in RUNNABLE state: "AWT-EventQueue-0" #20 prio=6 os_prio=31 tid=0x00007fb241a22800 nid=0xd107 runnable [0x000000012ef4c000] java.lang.Thread.State: RUNNABLE at com.sun.glass.ui.mac.MacApplication._runLoop(Native Method) at com.sun.glass.ui.mac.MacApplication.runLoop(MacApplication.java:83) at com.sun.glass.ui.Application.run(Application.java:153) Maybe an issue with JDK on MacOS
Yes, the beach ball was spinning, but otherwise the UI was unresponsive. As to OS X, there may well be a problem there. After one such incident I upgrade from jdk 1.8.0_66 to 1.8.0_92 and NB strated without issue. But that only relieved the issue for less than a day.