This may break things, but accidentally passing a null runqueue that you think

is not null results in extremely nefarious race condition bugs that are best
nipped in the bud.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@2529 6335cc39-0255-0410-8fd6-9bcaacd3b74c

src/java/com/samskivert/util/Interval.java

@@ -70,6 +70,9 @@ public abstract class Interval
      */
     public Interval (RunQueue runQueue)
     {
+        if (runQueue == null) {
+            throw new IllegalArgumentException("Supplied RunQueue must be non-null");
+        }
         _runQueue = runQueue;
     }