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root/jsr166/jsr166/src/main/java/util/concurrent/ThreadLocalRandom.java

Comparing jsr166/src/main/java/util/concurrent/ThreadLocalRandom.java (file contents):
Revision 1.50 by jsr166, Sun Nov 13 03:37:41 2016 UTC vs.
Revision 1.51 by jsr166, Sun Jan 29 04:34:59 2017 UTC

#	Line 956 | Line 956 | public class ThreadLocalRandom extends R
956		U.putObjectRelease(thread, INHERITEDACCESSCONTROLCONTEXT, acc);
957		}
958
959	–	/**
960	–	* Returns a new group with the system ThreadGroup (the
961	–	* topmost, parent-less group) as parent.  Uses Unsafe to
962	–	* traverse Thread.group and ThreadGroup.parent fields.
963	–	*/
964	–	static final ThreadGroup createThreadGroup(String name) {
965	–	if (name == null)
966	–	throw new NullPointerException();
967	–	try {
968	–	long tg = U.objectFieldOffset
969	–	(Thread.class.getDeclaredField("group"));
970	–	long gp = U.objectFieldOffset
971	–	(ThreadGroup.class.getDeclaredField("parent"));
972	–	ThreadGroup group = (ThreadGroup)
973	–	U.getObject(Thread.currentThread(), tg);
974	–	while (group != null) {
975	–	ThreadGroup parent = (ThreadGroup)U.getObject(group, gp);
976	–	if (parent == null)
977	–	return new ThreadGroup(group, name);
978	–	group = parent;
979	–	}
980	–	} catch (ReflectiveOperationException e) {
981	–	throw new Error(e);
982	–	}
983	–	// fall through if null as cannot-happen safeguard
984	–	throw new Error("Cannot create ThreadGroup");
985	–	}
986	–
959		// Serialization support
960
961		private static final long serialVersionUID = -5851777807851030925L;

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