Lazy-create the Runnable that expires us on the RunQueue.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@1567 6335cc39-0255-0410-8fd6-9bcaacd3b74c

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

@@ -131,21 +131,18 @@ public abstract class Interval
      */
     protected class IntervalTask extends TimerTask
     {
-        { // initializer
+        // documentation inherited
-            if (_runQueue != null) {
+        public void run () {
+            if (_runQueue == null) {
+                safelyExpire(this);
+            } else {
+                if (_runner == null) { // lazy initialize _runner
                     _runner = new Runnable() {
                         public void run () {
                             safelyExpire(IntervalTask.this);
                         }
                     };
                 }
-        }
-
-        // documentation inherited
-        public void run () {
-            if (_runQueue == null) {
-                safelyExpire(this);
-            } else {
                 _runQueue.postRunnable(_runner);
             }
         }