Negative schedule time now indicates immediate execution.

Author: akarnokd

rxjava-contrib/rxjava-swing/src/main/java/rx/schedulers/SwingScheduler.java

@@ -64,7 +64,7 @@ public boolean isUnsubscribed() {
 
         @Override
         public Subscription schedule(final Action0 action, long delayTime, TimeUnit unit) {
-            long delay = unit.toMillis(delayTime);
+            long delay = Math.max(0, unit.toMillis(delayTime));
             assertThatTheDelayIsValidForTheSwingTimer(delay);
             final BooleanSubscription s = BooleanSubscription.create();
             class ExecuteOnceAction implements ActionListener {

rxjava-contrib/rxjava-swing/src/test/java/rx/schedulers/SwingSchedulerTest.java

@@ -51,10 +51,8 @@ public void testInvalidDelayValues() {
         final Worker inner = scheduler.createWorker();
         final Action0 action = mock(Action0.class);
 
-        exception.expect(IllegalArgumentException.class);
         inner.schedulePeriodically(action, -1L, 100L, TimeUnit.SECONDS);
 
-        exception.expect(IllegalArgumentException.class);
         inner.schedulePeriodically(action, 100L, -1L, TimeUnit.SECONDS);
 
         exception.expect(IllegalArgumentException.class);