java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Unknown Source)
at haven.Defer$1.run(Defer.java:297)
at haven.Defer$1.run(Defer.java:294)
at java.security.AccessController.doPrivileged(Native Method)
at haven.Defer.defer(Defer.java:294)
at haven.Defer.defer(Defer.java:308)
at haven.Defer.later(Defer.java:330)
at haven.MCache$Grid.buildcut(MCache.java:474)
at haven.MCache$Grid.invalidate(MCache.java:519)
at haven.MCache$Grid.fill(MCache.java:720)
at haven.MCache.mapdata2(MCache.java:940)
at haven.MCache.mapdata(MCache.java:969)
at haven.Session$RWorker.run(Session.java:522)
Vanilla or ender dont matter. Happens mostly when entering buildings, mines, sometimes just walking around.